Q1. Sodium reacts with water to produce hydrogen gas and a solution of sodium hydroxide.
|
|
|
- Clyde Holt
- 7 years ago
- Views:
Transcription
1 Q1. Sodium reacts with water to produce hydrogen gas and a solution of sodium hydroxide. Complete the word equation for this reaction (do not use symbols or formulae) (Total 3 marks) Q2. The diagram shows part of the periodic table. Choose from the elements shown in the table: (a) one metal... (b) a noble gas... (c) a coloured gas... (Total 3 marks) Q3. The diagram shows the structure of a lithium atom. Page 1 of 42
2 (a) (i) What is represented by... (ii) What is represented by... (b) What is the symbol for lithium?... (Total 3 marks) Q4. Choose words from this list to complete the sentences below. carbonate chloride compound mixture oxide solution (a) When two elements react, the new substance formed is called a.... (b) The white powder formed when zinc reacts with oxygen is called zinc.... (Total 2 marks) Q5. The diagram shows an atom. (a) On the diagram, write the names of structures A, B, C and D. (4) (b) To which Group of the periodic table does this atom belong? Give one reason for your answer. Page 2 of 42
3 (c) Name the element which is made up of this type of atom. (Total 7 marks) Q6. (a) Helium is used to fill party balloons. Which two of the following are properties that make helium suitable for filling party balloons? Place a tick ( ) in the box against each suitable property. Coloured Exists as individual atoms Less dense than air Poor conductor of heat Very unreactive (b) The table shows the names of some gases. Use the correct formulae from the box to complete the table. The first one has been done for you. CH 4 CO 2 H 2 HCl NH 3 O 2 Gas Formula Oxygen O 2 Carbon dioxide Hydrogen chloride Ammonia (3) (Total 5 marks) Page 3 of 42
4 Q7. The periodic table on the Data Sheet might help you to answer this question. Diagrams A D show models of four different molecules. Complete the table to give the name and the formula of each of the molecules A D. The first one has been done for you. Molecule Name Formula A Hydrogen H 2 B C D (Total 6 marks) ## Sando-K is a medicine. It is given to people whose bodies contain too little of a particular element. Sando-K is a mixture of two compounds. The formulae of the two compounds are given below. KHCO 3 KCl (a) Use the Data Sheet to help you to name all the elements in these compounds. (3) (b) Which metal do people given Sando-K need? (Total 4 marks) Page 4 of 42
5 Q9. About 100 years ago a scientist called J. J. Thomson thought that an atom was a ball of positive charge with negative particles stuck inside. Today a different model is used. The diagram shows how an atom of carbon is represented by this model. (a) The negative particles are called electrons. (i) What is the name of the positive particles?... (ii) What particle is represented by?... (iii) What is the central part of the atom called that contains both and?... (b) Use the model to explain why the six electrons are arranged as shown. (Total 5 marks) Page 5 of 42
6 Q10. In the flasks are the particles of four different gases. (Each circle represents an atom.) (a) Which diagram represents (i) oxygen, O 2... (ii) steam, H 2 O... (b) The gases in A and B are elements and the gases in C and D are compounds. Explain why. (3) (Total 5 marks) Q11. The diagram shows the reaction of hydrogen molecules with oxygen molecules to form water molecules. (i) In the empty box draw one oxygen molecule. Page 6 of 42
7 (ii) Why are hydrogen and oxygen called elements? (iii) Why is water called a compound? (Total 4 marks) Q12. The diagram shows a light bulb. (a) (i) An argon atom has the structure shown. Use the words in the box to label the particles in the atom. Each word should only be used once. electron neutron proton (ii) Argon is unreactive. Why? Page 7 of 42
8 (b) Oxygen would not be a suitable gas to use in a light bulb. Explain why (Total 5 marks) Q13. The diagrams show the electronic arrangement of the atoms of two elements. (i) Name the part of the atoms labelled X.... (ii) Why are these two elements in the same group of the Periodic Table? (Total 2 marks) Page 8 of 42
9 Q14. (a) The diagram represents an atom of beryllium. Use words from the box to label the diagram. electron ion isotope molecule nucleus (b) Use crosses (x) to complete the diagram to show the electronic structure of a magnesium atom. The atomic (proton) number of magnesium is 12. (Total 4 marks) Q15. The diagram represents the electronic structure of an atom of an element. The periodic table on the Data Sheet may help you with this question. Page 9 of 42
10 (a) Name this element.... (b) Complete this sentence. The nucleus of an atom contains neutrons and... (Total 2 marks) Q16. John Dalton wrote these statements in All substances are made of a vast number of extremely small particles called atoms. Every particle of water is like every other particle of water, every particle of hydrogen is like every other particle of hydrogen, etc. (a) Every particle of water is like every other particle of water. Use Dalton s ideas and your knowledge of water to explain why. (b) Dalton thought that all atoms of an element are exactly the same. We now know that it is possible to have atoms of the same element but with different mass numbers. The diagrams represent two atoms of hydrogen. Atom A Atom B State, in terms of particles, how these two atoms are different. (Total 3 marks) Page 10 of 42
11 Q17. The drawing shows an airship that was used about 80 years ago. (a) The gas bag was filled with hydrogen. A leak from the gas bag could be very dangerous. Use your knowledge of the reactions of hydrogen to explain why. (b) Modern airships are filled with helium. (i) What property makes both hydrogen and helium suitable for use in airships? (ii) Helium is safer than hydrogen for use in airships. Explain why. You should use the position of helium in the periodic table in your answer (Total 5 marks) Page 11 of 42
12 Q18. When electricity passes through a thin wire, the wire gets hot. If the wire gets very hot, it may glow. This idea is used in filament lamps. (a) The table shows some metals and their melting points. Metal Melting point in C Aluminium 660 Copper 1084 Iron 1540 Tungsten 3410 Which metal in the table should be used to make the wire in a filament lamp? Give a reason for your answer. Page 12 of 42
13 (b) The table shows some gases. Gas Argon Carbon dioxide Oxygen Sulfur dioxide Which gas in the table should be used in a filament lamp? Give a reason for your answer. (Total 4 marks) Q19. Lithium metal is used in alkaline batteries. (a) The diagram shows the atoms in lithium metal. Why is lithium metal described as an element? Page 13 of 42
14 (b) The diagram below represents a lithium atom. Choose words from the box to label parts of the atom. bond electron molecule nucleus (Total 3 marks) Q20. Hydrogen is an element. (a) The diagram shows the parts of a hydrogen atom. Use words from the box to label the diagram. electron group nucleus symbol Page 14 of 42
15 (b) Hydrogen can be used as a clean fuel for cars. (i) When hydrogen burns in air, it reacts with another element. Complete the word equation for this reaction. hydrogen +... water (ii) Suggest one reason why hydrogen is called a clean fuel (Total 4 marks) Q21. Hot air balloons burn hydrocarbons to heat the air. (a) The hot air contains these gases: nitrogen, N 2 oxygen, O 2 argon, Ar carbon dioxide, CO 2 water vapour, H 2 O (i) Argon is an element. What is an element? Page 15 of 42
16 (ii) Name one other gas in the hot air that is also an element.... (b) Propane, C 3 H 8, can be represented as: H H H H C C H H H C H Use the correct words from the box to complete the sentences. bond carbon compound element mixture (i) Propane is a... and is made up of atoms of hydrogen and... (ii) Each line between the atoms in propane represents a chemical... (Total 5 marks) Q22. The diagram shows a circuit that is used in a torch. Electrons flow through this circuit. (a) Why is copper used for the wire? Page 16 of 42
17 (b) The diagram shows the structure of an atom of lithium. Name the particle labelled Z. (c) The table shows some properties of the metals used in the electrical circuit. Metal Melting point in C Boiling point in C Reaction with oxygen Copper Lithium Tungsten Reacts slowly to form a thin oxide layer on surface Reacts rapidly to form oxide Reacts only when very hot to form oxide (i) Use information from the table to suggest the order of reactivity for copper, lithium and tungsten. most reactive least reactive... (ii) The filament wire glows because it gets very hot. Use information from the table to suggest one reason why tungsten is used for the filament wire in the light bulb Page 17 of 42
18 (d) The gas used in the light bulb is argon. Draw a ring around the correct word in the box to complete the sentence. Argon is used in the light bulb because it is dense. solid. unreactive.. (Total 6 marks) Q23. Iron is the main structural metal used in the world. (a) The diagram represents the particles in iron, Fe. Draw a ring around the correct word in the box to complete the sentence. Iron is described as an element because all the atoms compounds metals are the same. Page 18 of 42
19 (b) Stainless steel is mostly iron. The diagram represents the particles in stainless steel. Use the correct words from the box to complete the sentences about alloys. metal mixture molecule polymer smart structure Stainless steel is an alloy because it is a... of iron, chromium and nickel. An alloy is made up of more than one type of.... Stainless steel alloys are harder than iron because the different sized atoms added change the.... An alloy that can return to its original shape after being deformed is called a... alloy. (4) (c) In the UK, we use about 1.8 billion steel cans every year but only 25% are recycled. Used steel cans are worth about 100 per tonne. Recycling saves raw materials and reduces waste that would end up in landfill. Producing steel by recycling used cans saves 75% of the energy that would be needed to produce steel from iron ore. This also reduces carbon dioxide emissions. (i) Give two reasons, from the information above, to explain why recycling used steel cans is a good idea Page 19 of 42
20 (ii) Suggest how the local council could increase the percentage of used steel cans that are recycled (Total 8 marks) Q24. A substance made of only one type of atom is called an element. The chemical symbols and positions of six elements in the periodic table are shown. Draw a straight line from each description to its correct symbol. Description A metal with a low density that does not corrode easily It has properties similar to those of sodium, Na Symbol Al Fe He It is a transition metal Li It is a noble gas O (Total 4 marks) Page 20 of 42
21 Q25. In a quarry, limestone is blasted into pieces by explosives. The pieces of limestone are taken from the quarry by lorries. (a) Draw a ring around the correct word in the box to complete the sentence. building Limestone can be used as a plastic material. smart (b) Tick ( ) one possible advantage for people who live near to the limestone quarry. Advantage Tick ( ) causes more traffic provides jobs attracts tourists to the area (c) Give two types of pollution that would be caused by the limestone quarry Page 21 of 42
22 (d) Limestone contains calcium carbonate (CaCO 3 ). Complete the two empty boxes in the table about the formula of calcium carbonate. Name of element Symbol for the element Number of atoms in the formula calcium Ca 1 carbon C 1 oxygen (e) Lorries take some of the limestone to be heated in a lime-kiln. Calcium carbonate, in the limestone, decomposes when heated. Use the balanced chemical equation to help you complete the word equation for the decomposition of calcium carbonate. CaCO 3 CaO + CO 2 calcium carbonate... + carbon dioxide (Total 7 marks) Q26. Natural gas is mainly a hydrocarbon called methane. (a) Use one word from the box to complete the sentence. compounds elements molecules Hydrocarbons contain hydrogen and carbon only. Hydrogen and carbon are.... Page 22 of 42
23 (b) The diagrams represent atoms of hydrogen and carbon. Draw a ring around the correct answer to complete the sentences. bond. (i) The centre of each atom is called the nucleus. symbol. three (ii) The hydrogen atom has one electron and the carbon atom has four electrons. six (c) A molecule of methane can be represented as Draw a ring around the correct answer to complete the sentences. CH (i) The formula of methane is CH 4 C 4 H 4 bond. (ii) The line between C H is called a molecule. nucleus. Page 23 of 42
24 (d) Methane burns to produce carbon dioxide (CO 2 ) and water (H 2 O). (i) Draw a ring around the correct answer to complete the sentence. carbon. When methane burns it reacts with nitrogen. oxygen. (ii) Hydrogen (H 2 ) can be used as a fuel. Suggest why burning hydrogen would be less harmful to the environment than burning methane (Total 7 marks) Q27. Hydrogen and helium have both been used in airships. (a) Tick ( ) the property which both hydrogen and helium have that makes an airship float in air. Property Tick ( ) Colourless Less dense than air More dense than air Page 24 of 42
25 (b) (i) Hydrogen is no longer used in airships because it burns in oxygen. The chemical equation for this reaction is shown. 2H 2 + O 2 2H 2 O Complete the word equation for this reaction hydrogen + oxygen... (ii) Helium is safer than hydrogen because it does not burn in oxygen. Draw a ring around the correct answer to complete the sentence. a fuel. Helium is now used in airships because it is already in the air. unreactive. (c) Diagram 1 represents hydrogen molecules. Draw a ring around the correct answer to complete the sentence. atoms. Each hydrogen molecule is made up of two hydrogen compounds. elements. Page 25 of 42
26 (d) Diagram 2 shows the parts of a helium atom. Use words from the box to label diagram 2. bond electron nucleus (Total 6 marks) Page 26 of 42
27 Q28. Human stomachs contain hydrochloric acid. Stomach ache can be caused by too much acid in the stomach. Indigestion tablets can be used to reduce the amount of acid in the stomach. (a) The graph shows how the volume of carbon dioxide produced changes with time, after some calcium carbonate is added to hydrochloric acid. (i) Complete the sentence to explain what happens between O and P. Between O and P the calcium carbonate and hydrochloric acid... (ii) Complete the sentence to explain what happens at P. At P the calcium carbonate and hydrochloric acid... because... (iii) Describe the test for carbon dioxide gas. Test... Result of the test... Page 27 of 42
28 (b) Calcium carbonate is found in limestone. Limestone is removed from the ground by quarrying. Photograph supplied by Stockbyte/Thinkstock Tick ( ) one advantage and tick ( ) one disadvantage of quarrying limestone. Statement Quarrying limestone destroys the shells and skeletons of marine organisms that formed the limestone. Quarrying limestone releases dust, and lorries release carbon dioxide from burning diesel fuel. Quarrying limestone provides building materials, employment and new road links. Quarrying limestone removes ores from the ground. Advantage Tick ( ) Disadvantage Tick ( ) (Total 7 marks) Page 28 of 42
29 Q29. The diagrams show the sub-atomic particles in four different atoms. Use the Chemistry Data Sheet to help you to answer these questions. (a) Draw a ring around the correct answer to complete each sentence. energy level. (i) The centre of each atom is called the molecule. nucleus. bonds. (ii) The centre of each atom contains neutrons and electrons. protons. (b) Complete the sentence. There is no overall electrical charge on each atom because the number of... is equal to the number of... (c) What is the name of the element represented by atom D?... Page 29 of 42
30 (d) Which two of the atoms, A, B, C and D, are in the same group of the periodic table? Give a reason for your answer. Atom and atom Reason (Total 6 marks) Page 30 of 42
31 Q30. About 3000 million years ago carbon dioxide was one of the main gases in the Earth s early atmosphere. About 400 million years ago plants and trees grew on most of the land. When the plants and trees died they were covered by sand and slowly decayed to form coal. Today coal is burned in power stations to release the energy needed by industry. (a) The bar chart shows the percentage of some of the elements in this coal. (i) This coal contains 85 % carbon. Draw the bar for carbon on the chart. Page 31 of 42
32 (ii) Coal is burned in the atmosphere to release energy. Two of the products of burning coal are shown. Draw one line from each product to its environmental impact. Product Environmental impact Acid rain Sulfur dioxide Global dimming Carbon particles Global warming (b) Use the information above and your knowledge and understanding to answer these questions. (i) How did the formation of coal decrease the amount of carbon dioxide in the Earth s early atmosphere? (ii) How does burning coal affect the amount of carbon dioxide in the Earth s atmosphere? Explain your answer (Total 6 marks) Page 32 of 42
33 Q31. This question is about atoms and molecules. (a) In the diagrams below: is a nitrogen atom is an oxygen atom is a carbon atom. Draw one line from each diagram to its correct description. One line has been done for you. Page 33 of 42
34 (b) The diagram below shows a hydrogen atom. Use words from the box to write the correct labels on the diagram. alloy electron group nucleus (c) This chemical equation represents the reaction of hydrogen burning. 2H 2 + O 2 2 H 2 O Complete the sentence to describe what is happening in this chemical reaction. Hydrogen reacts with (Total 6 marks) Page 34 of 42
35 Q32. The picture shows a diamond ring. Photograph supplied by Comstock/Thinkstock (a) Diamond is a form of carbon. The diagram represents a carbon atom. Complete the table to show the name and charge of each type of particle in the carbon atom. Name of particle Charge proton neutron 0-1 (b) Use the Chemistry Data Sheet to help you to answer these questions. (i) Draw a ring around the correct answer to complete the sentence. compounds. Gold and carbon are elements. mixtures. (ii) Complete the sentence. Gold and carbon have different properties because gold is a metal and carbon is a... Page 35 of 42
36 (c) Draw a ring around the correct answer to complete each sentence. hard. Pure gold is not used to make the ring because pure gold is too reactive. soft. a compound. The gold ring is made by mixing pure gold with other metals to form an atom. an alloy. (d) The data in the table shows some information about the three metals in the gold ring. Name of metal Atomic number Percentage (%) of metal gold 79 silver copper 29 9 Draw one line from each question to its correct answer. Question Answer 29 What is the percentage of gold in this ring? 61 How many electrons are there in a copper atom? 75 How many neutrons are in an atom of silver with a mass number of 108? 79 (3) (Total 9 marks) Page 36 of 42
37 Q33. The Sun is mainly hydrogen and helium. The diagrams show an atom of hydrogen and an atom of helium. Hydrogen Helium (a) Draw a ring around the correct answer to complete each sentence. molecule. (i) The centre of each atom is called the nucleus. shell. a bond. (ii) The circle (labelled R) around the centre of each atom is called an electrical charge. an energy level (shell). (b) Use the diagrams in part (a) to help you to answer these questions. Draw one line from each question to its correct answer. Question Answer 1 How many protons are there in the hydrogen atom? 2 How many electrons are there in the helium atom? 3 What is the mass number of the helium atom? 4 (3) Page 37 of 42
38 (c) The Sun is 73% hydrogen and 25% helium. The rest is other elements. What is the percentage of other elements in the Sun?... % (d) One of the other elements in the Sun is neon. Neon is in the same group of the periodic table as helium. Use the Chemistry Data Sheet to help you to answer these questions. (i) How many protons are there in a neon atom?... (ii) Which group of the periodic table are helium and neon in?... (Total 8 marks) Q34. Barbecues are heated by burning charcoal or burning hydrocarbons. (a) Use the Chemistry Data Sheet to help you to answer this question. The chemical equation for charcoal burning is: C + O 2 CO 2 Complete the word equation for this reaction. carbon +... carbon dioxide Page 38 of 42
39 (b) Propane is a hydrocarbon. (i) Complete the displayed structure of propane. Draw in the missing bonds. (ii) Write the chemical formula of propane.... (iii) Draw a ring around the correct answer to complete the sentence. hydrogen. Propane burns in air to produce carbon dioxide and hydroxide. water. (c) The table shows information about six hydrocarbons. Hydrocarbon State at room temperature (20 C) Boiling point in C Ethane (C 2 H 6 ) gas 89 Ethene (C 2 H 4 ) gas 104 Butane (C 4 H 10 ) gas 1 Butene (C 4 H 8 ) gas 6 Hexane (C 6 H 14 ) liquid +69 Hexene (C 6 H 12 ) liquid +64 Tick ( ) two correct statements about the six hydrocarbons. Statement Tick ( ) Ethane and butane boil at temperatures less than 20 C. Hexene and butene are alkanes. Butane and hexane are liquid at 0 C. Ethene and hexene each have a carbon-carbon double bond. (Total 6 marks) Page 39 of 42
![Q35. Magnesium burns in oxygen. By Kingsway School [CC BY 2.0], via Flickr (a) Use the Chemistry Data Sheet to help you to answer this question.](/docs-images/58/41577354/images/40-0.png "The word equation for magnesium burning is: magnesium + oxygen magnesium oxide Draw one line from each substance to its correct description.")
40 Q35. Magnesium burns in oxygen. By Kingsway School [CC BY 2.0], via Flickr (a) Use the Chemistry Data Sheet to help you to answer this question. The word equation for magnesium burning is: magnesium + oxygen magnesium oxide Draw one line from each substance to its correct description. Substance Description compound magnesium metal magnesium oxide mixture oxygen non-metal (3) Page 40 of 42
41 (b) The diagram represents a magnesium atom. Complete the table to show the name of each particle and the charge of each particle in the magnesium atom. Name of particle Charge proton +1 neutron (c) Use the Chemistry Data Sheet to help you to answer these questions. Draw a ring around the correct answer to complete each sentence. core. (i) In a magnesium atom, the protons and neutrons are in the nucleus. shell. (ii) The number of protons in a magnesium atom is the atomic number mass number. group number. (iii) The sum of the protons and neutrons in a magnesium atom is the atomic number. mass number. group number. (Total 8 marks) Page 41 of 42
42 Page 42 of 42
Specimen Paper. Chemistry 1F. Time allowed! 60 minutes
Centre Number Surname Candidate Number Specimen Paper For Examiner s Use Other Names Candidate Signature Examiner s Initials General Certificate of Secondary Education Foundation Tier Question 1 Mark Science
Cambridge International Examinations Cambridge International General Certificate of Secondary Education
Cambridge International Examinations Cambridge International General Certificate of Secondary Education *0123456789* CHEMISTRY 0620/03 Paper 3 Theory (Core) For Examination from 2016 SPECIMEN PAPER 1 hour
Chemical Building Blocks: Chapter 3: Elements and Periodic Table
Name: Class: Date: Chemical Building Blocks: Chapter 3: Elements and Periodic Table Study Guide Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.
Chapter 16: Tests for ions and gases
The position of hydrogen in the reactivity series Hydrogen, although not a metal, is included in the reactivity series because it, like metals, can be displaced from aqueous solution, only this time the
Untitled Document. 1. Which of the following best describes an atom? 4. Which statement best describes the density of an atom s nucleus?
Name: Date: 1. Which of the following best describes an atom? A. protons and electrons grouped together in a random pattern B. protons and electrons grouped together in an alternating pattern C. a core
IB Chemistry. DP Chemistry Review
DP Chemistry Review Topic 1: Quantitative chemistry 1.1 The mole concept and Avogadro s constant Assessment statement Apply the mole concept to substances. Determine the number of particles and the amount
Specimen Paper. Time allowed! 60 minutes
Centre Number Surname Candidate Number Specimen Paper For Examiner s Use Other Names Candidate Signature Examiner s Initials General Certificate of Secondary Education Foundation Tier Question 1 Mark Chemistry
neutrons are present?
AP Chem Summer Assignment Worksheet #1 Atomic Structure 1. a) For the ion 39 K +, state how many electrons, how many protons, and how many 19 neutrons are present? b) Which of these particles has the smallest
Instructions Answer all questions in the spaces provided. Do all rough work in this book. Cross through any work you do not want to be marked.
GCSE CHEMISTRY Higher Tier Chemistry 1H H Specimen 2018 Time allowed: 1 hour 45 minutes Materials For this paper you must have: a ruler a calculator the periodic table (enclosed). Instructions Answer all
Coimisiún na Scrúduithe Stáit State Examinations Commission
2015. M33 Coimisiún na Scrúduithe Stáit State Examinations Commission LEAVING CERTIFICATE EXAMINATION, 2015 CHEMISTRY ORDINARY LEVEL TUESDAY, 16 JUNE AFTERNOON 2.00 TO 5.00 400 MARKS Answer eight questions
Unit 3 Notepack Chapter 7 Chemical Quantities Qualifier for Test
Unit 3 Notepack Chapter 7 Chemical Quantities Qualifier for Test NAME Section 7.1 The Mole: A Measurement of Matter A. What is a mole? 1. Chemistry is a quantitative science. What does this term mean?
B) atomic number C) both the solid and the liquid phase D) Au C) Sn, Si, C A) metal C) O, S, Se C) In D) tin D) methane D) bismuth B) Group 2 metal
1. The elements on the Periodic Table are arranged in order of increasing A) atomic mass B) atomic number C) molar mass D) oxidation number 2. Which list of elements consists of a metal, a metalloid, and
ATOMS. Multiple Choice Questions
Chapter 3 ATOMS AND MOLECULES Multiple Choice Questions 1. Which of the following correctly represents 360 g of water? (i) 2 moles of H 2 0 (ii) 20 moles of water (iii) 6.022 10 23 molecules of water (iv)
******* KEY ******* Atomic Structure & Periodic Table Test Study Guide
Atomic Structure & Periodic Table Test Study Guide VOCABULARY: Write a brief definition of each term in the space provided. 1. Atoms: smallest unit of an element that has all of the properties of that
7.4. Using the Bohr Theory KNOW? Using the Bohr Theory to Describe Atoms and Ions
7.4 Using the Bohr Theory LEARNING TIP Models such as Figures 1 to 4, on pages 218 and 219, help you visualize scientific explanations. As you examine Figures 1 to 4, look back and forth between the diagrams
Questions Q1. Lithium, sodium and potassium are metals in group 1 of the periodic table. They are good conductors of heat and electricity. The freshly-cut metals are shiny. (a) (i) Give another physical
GCSE Chemistry Quiz Chemical Reactions
GCSE Chemistry Quiz Chemical Reactions A chemical reaction is a process where the molecular structure changes. Chemical reactions are all around us. We can see many reactions such as fireworks and explosions.
Ionic and Metallic Bonding
Ionic and Metallic Bonding BNDING AND INTERACTINS 71 Ions For students using the Foundation edition, assign problems 1, 3 5, 7 12, 14, 15, 18 20 Essential Understanding Ions form when atoms gain or lose
Cambridge International Examinations Cambridge International General Certificate of Secondary Education
Cambridge International Examinations Cambridge International General Certificate of Secondary Education *0123456789* CHEMISTRY 0620/04 Paper 4 Theory (Extended) For Examination from 2016 SPECIMEN PAPER
Q1. A student studied the reaction between dilute hydrochloric acid and an excess of calcium carbonate.
Q. A student studied the reaction between dilute hydrochloric acid and an excess of calcium carbonate. calcium carbonate + hydrochloric acid calcium chloride + water + carbon dioxide The student measured
Unit 3 Study Guide: Electron Configuration & The Periodic Table
Name: Teacher s Name: Class: Block: Date: Unit 3 Study Guide: Electron Configuration & The Periodic Table 1. For each of the following elements, state whether the element is radioactive, synthetic or both.
CHM 1311: General Chemistry 1, Fall 2004 Exam #1, September 8, 2004. Name (print) SSN
CHM 1311: General Chemistry 1, Fall 2004 Exam #1, September 8, 2004 Name (print) SSN Pledge: I have neither given nor received aid on this exam: Signature For ALL problems: SHOW ALL WORK TO GET FULL CREDIT
Bonding Practice Problems
NAME 1. When compared to H 2 S, H 2 O has a higher 8. Given the Lewis electron-dot diagram: boiling point because H 2 O contains stronger metallic bonds covalent bonds ionic bonds hydrogen bonds 2. Which
Elements, Atoms & Ions
Introductory Chemistry: A Foundation FOURTH EDITION by Steven S. Zumdahl University of Illinois Elements, Atoms & Ions Chapter 4 1 2 Elements Aims: To learn about the relative abundances of the elements,
Properties and Classifications of Matter
PS-3.1 Distinguish chemical properties of matter (including reactivity) from physical properties of matter (including boiling point, freezing/melting point, density [with density calculations], solubility,
Chemistry Post-Enrolment Worksheet
Name: Chemistry Post-Enrolment Worksheet The purpose of this worksheet is to get you to recap some of the fundamental concepts that you studied at GCSE and introduce some of the concepts that will be part
Chemistry Assessment Unit AS 1
Centre Number 71 Candidate Number ADVANCED SUBSIDIARY (AS) General Certificate of Education January 2011 Chemistry Assessment Unit AS 1 assessing Basic Concepts in Physical and Inorganic Chemistry [AC111]
20.2 Chemical Equations
All of the chemical changes you observed in the last Investigation were the result of chemical reactions. A chemical reaction involves a rearrangement of atoms in one or more reactants to form one or more
hij GCSE Science / Chemistry Higher Tier Unit 1 Chemistry SPECIMEN MARK SCHEME Version 1.0
hij GCSE Science / Chemistry Higher Tier Unit Chemistry SPECIMEN MARK SCHEME Version.0 Copyright 20 AQA and its licensors. All rights reserved. The Assessment and Qualifications Alliance (AQA) is a company
Atomic Structure. Name Mass Charge Location Protons 1 +1 Nucleus Neutrons 1 0 Nucleus Electrons 1/1837-1 Orbit nucleus in outer shells
Atomic Structure called nucleons Name Mass Charge Location Protons 1 +1 Nucleus Neutrons 1 0 Nucleus Electrons 1/1837-1 Orbit nucleus in outer shells The number of protons equals the atomic number This
WRITING CHEMICAL FORMULA
WRITING CHEMICAL FORMULA For ionic compounds, the chemical formula must be worked out. You will no longer have the list of ions in the exam (like at GCSE). Instead you must learn some and work out others.
EXTRACTION OF METALS
1 EXTRACTION OF METALS Occurrence ores of some metals are very common (iron, aluminium) others occur only in limited quantities in selected areas ores need to be purified before being reduced to the metal
Chapter Outline. 3 Elements and Compounds. Elements and Atoms. Elements. Elements. Elements 9/4/2013
3 Elements and Compounds Chapter Outline 3.1 Elements A. Distribution of Elements Foundations of College Chemistry, 14 th Ed. Morris Hein and Susan Arena Copyright This reclining Buddha in Thailand is
Balancing Chemical Equations Worksheet
Balancing Chemical Equations Worksheet Student Instructions 1. Identify the reactants and products and write a word equation. 2. Write the correct chemical formula for each of the reactants and the products.
The Periodic Table: Periodic trends
Unit 1 The Periodic Table: Periodic trends There are over one hundred different chemical elements. Some of these elements are familiar to you such as hydrogen, oxygen, nitrogen and carbon. Each one has
EDEXCEL INTERNATIONAL GCSE CHEMISTRY EDEXCEL CERTIFICATE IN CHEMISTRY ANSWERS SECTION C
EDEXCEL INTERNATIONAL GCSE CHEMISTRY EDEXCEL CERTIFICATE IN CHEMISTRY ANSWERS SECTION C Chapter 16 1. Burn sulfur in air to give sulfur dioxide. S(s) + O 2 (g) ----> SO 2 (g) Pass this with more air over
Cambridge International Examinations Cambridge International General Certificate of Secondary Education
ambridge International Examinations ambridge International General ertificate of Secondary Education *012345678* EMISTRY 0620/01 Paper 1 Multiple hoice (ore) For Examination from 2016 SPEIMEN PPER dditional
Chapter 1: Moles and equations. Learning outcomes. you should be able to:
Chapter 1: Moles and equations 1 Learning outcomes you should be able to: define and use the terms: relative atomic mass, isotopic mass and formula mass based on the 12 C scale perform calculations, including
2014 Spring CHEM101 Ch1-2 Review Worksheet Modified by Dr. Cheng-Yu Lai,
Ch1 1) Which of the following underlined items is not an intensive property? A) A chemical reaction requires 3.00 g of oxygen. B) The density of helium at 25 C is 1.64 10-4 g/cm3. C) The melting point
Chapter 2: The Chemical Context of Life
Chapter 2: The Chemical Context of Life Name Period This chapter covers the basics that you may have learned in your chemistry class. Whether your teacher goes over this chapter, or assigns it for you
CHAPTER 3: MATTER. Active Learning Questions: 1-6, 9, 13-14; End-of-Chapter Questions: 1-18, 20, 24-32, 38-42, 44, 49-52, 55-56, 61-64
CHAPTER 3: MATTER Active Learning Questions: 1-6, 9, 13-14; End-of-Chapter Questions: 1-18, 20, 24-32, 38-42, 44, 49-52, 55-56, 61-64 3.1 MATTER Matter: Anything that has mass and occupies volume We study
Chapter 5 TEST: The Periodic Table name
Chapter 5 TEST: The Periodic Table name HPS # date: Multiple Choice Identify the choice that best completes the statement or answers the question. 1. The order of elements in the periodic table is based
AS1 MOLES. oxygen molecules have the formula O 2 the relative mass will be 2 x 16 = 32 so the molar mass will be 32g mol -1
Moles 1 MOLES The mole the standard unit of amount of a substance the number of particles in a mole is known as Avogadro s constant (L) Avogadro s constant has a value of 6.023 x 10 23 mol -1. Example
SCH 4C1 Unit 2 Problem Set Questions taken from Frank Mustoe et all, "Chemistry 11", McGraw-Hill Ryerson, 2001
SCH 4C1 Unit 2 Problem Set Questions taken from Frank Mustoe et all, "Chemistry 11", McGraw-Hill Ryerson, 2001 1. A small pin contains 0.0178 mol of iron. How many atoms of iron are in the pin? 2. A sample
Periodic Table Questions
Periodic Table Questions 1. The elements characterized as nonmetals are located in the periodic table at the (1) far left; (2) bottom; (3) center; (4) top right. 2. An element that is a liquid at STP is
Name Date Class CHAPTER 1 REVIEW. Answer the following questions in the space provided.
CHAPTER 1 REVIEW Matter and Change SECTION 1 SHORT ANSWER Answer the following questions in the space provided. 1. a Technological development of a chemical product often (a) lags behind basic research
Chapter 2 Atoms, Ions, and the Periodic Table
Chapter 2 Atoms, Ions, and the Periodic Table 2.1 (a) neutron; (b) law of conservation of mass; (c) proton; (d) main-group element; (e) relative atomic mass; (f) mass number; (g) isotope; (h) cation; (i)
3 CHEMICAL FOUNDATIONS: ELEMENTS, ATOMS AND IONS
3 CHEMICAL FOUNDATIONS: ELEMENTS, ATOMS AND IONS All matter is built up from chemical combinations of elements. As of 2003, there are 114 known elements, of which 88 are naturally occurring; the remaining
F321 MOLES. Example If 1 atom has a mass of 1.241 x 10-23 g 1 mole of atoms will have a mass of 1.241 x 10-23 g x 6.02 x 10 23 = 7.
Moles 1 MOLES The mole the standard unit of amount of a substance (mol) the number of particles in a mole is known as Avogadro s constant (N A ) Avogadro s constant has a value of 6.02 x 10 23 mol -1.
About the course GENERAL CHEMISTRY. Recommended literature: Chemistry: science of the matter. Responsible for the course: Dr.
About the course GENERAL CHEMISTRY University of Pécs Medical School Academic year 2009-2010. Responsible for the course: Dr. Attila AGÓCS Optional course for 2 credit points. To have grade at the and
Candidate Style Answer
Candidate Style Answer Chemistry A Unit F321 Atoms, Bonds and Groups High banded response This Support Material booklet is designed to accompany the OCR GCE Chemistry A Specimen Paper F321 for teaching
Chemistry Worksheet: Matter #1
Chemistry Worksheet: Matter #1 1. A mixture (is/is not) a chemical combining of substances. 2. In a compound the (atoms/molecules) are (chemically/physically) combined so that the elements that make up
Chemistry Diagnostic Questions
Chemistry Diagnostic Questions Answer these 40 multiple choice questions and then check your answers, located at the end of this document. If you correctly answered less than 25 questions, you need to
Chemical Formulas, Equations, and Reactions Test Pre-AP Write all answers on your answer document.
Name: Period: Chemical Formulas, Equations, and Reactions Test Pre-AP Write all answers on your answer document. 1. Which of the following is a NOT a physical property of hydrogen? A. It is gas C. It is
Test Bank - Chapter 4 Multiple Choice
Test Bank - Chapter 4 The questions in the test bank cover the concepts from the lessons in Chapter 4. Select questions from any of the categories that match the content you covered with students. The
C4 Revision Questions Bumper Pack
C4 Revision Questions Bumper Pack You will need a Periodic Table to answer these questions!! C4a Atomic structure 1. Write down a definition of an element. 2. Write down: a) the approximate radius of an
Stoichiometry Review
Stoichiometry Review There are 20 problems in this review set. Answers, including problem set-up, can be found in the second half of this document. 1. N 2 (g) + 3H 2 (g) --------> 2NH 3 (g) a. nitrogen
Name Block Date Ch 17 Atomic Nature of Matter Notes Mrs. Peck. atoms- the smallest particle of an element that can be identified with that element
Name Block Date Ch 17 Atomic Nature of Matter Notes Mrs. Peck atoms- the smallest particle of an element that can be identified with that element are the building blocks of matter consists of protons and
Unit 6 The Mole Concept
Chemistry Form 3 Page 62 Ms. R. Buttigieg Unit 6 The Mole Concept See Chemistry for You Chapter 28 pg. 352-363 See GCSE Chemistry Chapter 5 pg. 70-79 6.1 Relative atomic mass. The relative atomic mass
KS3 Science: Chemistry Contents
summary KS3 Science MyWorks Guide Chemistry KS3 Science: Chemistry Mini zes: 40 Super zes: 5 Extension zes: 4 Skills zes: 6 TOTAL 54 What are MyWorks zes? MyWorks zes are short individual learning tasks
Unit 9 Stoichiometry Notes (The Mole Continues)
Unit 9 Stoichiometry Notes (The Mole Continues) is a big word for a process that chemist s use to calculate amounts in reactions. It makes use of the coefficient ratio set up by balanced reaction equations
Stoichiometry. 1. The total number of moles represented by 20 grams of calcium carbonate is (1) 1; (2) 2; (3) 0.1; (4) 0.2.
Stoichiometry 1 The total number of moles represented by 20 grams of calcium carbonate is (1) 1; (2) 2; (3) 01; (4) 02 2 A 44 gram sample of a hydrate was heated until the water of hydration was driven
Chapter 2 The Chemical Context of Life
Chapter 2 The Chemical Context of Life Multiple-Choice Questions 1) About 25 of the 92 natural elements are known to be essential to life. Which four of these 25 elements make up approximately 96% of living
Amount of Substance. http://www.avogadro.co.uk/definitions/elemcompmix.htm
Page 1 of 14 Amount of Substance Key terms in this chapter are: Element Compound Mixture Atom Molecule Ion Relative Atomic Mass Avogadro constant Mole Isotope Relative Isotopic Mass Relative Molecular
Chapter 3 Mass Relationships in Chemical Reactions
Chapter 3 Mass Relationships in Chemical Reactions Student: 1. An atom of bromine has a mass about four times greater than that of an atom of neon. Which choice makes the correct comparison of the relative
Honors Chemistry: Unit 6 Test Stoichiometry PRACTICE TEST ANSWER KEY Page 1. A chemical equation. (C-4.4)
Honors Chemistry: Unit 6 Test Stoichiometry PRACTICE TEST ANSWER KEY Page 1 1. 2. 3. 4. 5. 6. Question What is a symbolic representation of a chemical reaction? What 3 things (values) is a mole of a chemical
MOLES AND MOLE CALCULATIONS
35 MOLES ND MOLE CLCULTIONS INTRODUCTION The purpose of this section is to present some methods for calculating both how much of each reactant is used in a chemical reaction, and how much of each product
Balancing chemical reaction equations (stoichiometry)
Balancing chemical reaction equations (stoichiometry) This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit
CP Chemistry Review for Stoichiometry Test
CP Chemistry Review for Stoichiometry Test Stoichiometry Problems (one given reactant): 1. Make sure you have a balanced chemical equation 2. Convert to moles of the known substance. (Use the periodic
Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.
Introduction to Chemistry Exam 2 Practice Problems 1 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1.Atoms consist principally of what three
Composition of the Atmosphere. Outline Atmospheric Composition Nitrogen and Oxygen Lightning Homework
Molecules of the Atmosphere The present atmosphere consists mainly of molecular nitrogen (N2) and molecular oxygen (O2) but it has dramatically changed in composition from the beginning of the solar system.
Final. Mark Scheme CH1HP. Science A / Chemistry. (Specification 4405 / 4402) Unit 1: Chemistry 1
02.3 General Certificate of Secondary Education January 203 Science A / Chemistry CHHP (Specification 4405 / 4402) Unit : Chemistry Final Mark Scheme Mark schemes are prepared by the Principal Examiner
Metals and Non-metals. Comparison of physical properties of metals and non metals
Metals and Non-metals Comparison of physical properties of metals and non metals PHYSICAL PROPERTY METALS NON-METALS Physical State Metallic lustre (having a shining surface) Mostly solids (Liquid -mercury)
In the box below, draw the Lewis electron-dot structure for the compound formed from magnesium and oxygen. [Include any charges or partial charges.
Name: 1) Which molecule is nonpolar and has a symmetrical shape? A) NH3 B) H2O C) HCl D) CH4 7222-1 - Page 1 2) When ammonium chloride crystals are dissolved in water, the temperature of the water decreases.
Chapter 7: Chemical Energy
Chapter 7: Chemical Energy Goals of Period 7 Section 7.1: To describe atoms, chemical elements and compounds Section 7.2: To discuss the electromagnetic force and physical changes Section 7.3: To illustrate
Experiment 5. Chemical Reactions A + X AX AX A + X A + BX AX + B AZ + BX AX + BZ
Experiment 5 Chemical Reactions OBJECTIVES 1. To observe the various criteria that are used to indicate that a chemical reaction has occurred. 2. To convert word equations into balanced inorganic chemical
IB Chemistry 1 Mole. One atom of C-12 has a mass of 12 amu. One mole of C-12 has a mass of 12 g. Grams we can use more easily.
The Mole Atomic mass units and atoms are not convenient units to work with. The concept of the mole was invented. This was the number of atoms of carbon-12 that were needed to make 12 g of carbon. 1 mole
CHEMICAL REACTIONS AND REACTING MASSES AND VOLUMES
CHEMICAL REACTIONS AND REACTING MASSES AND VOLUMES The meaning of stoichiometric coefficients: 2 H 2 (g) + O 2 (g) 2 H 2 O(l) number of reacting particles 2 molecules of hydrogen react with 1 molecule
Chapter 8 - Chemical Equations and Reactions
Chapter 8 - Chemical Equations and Reactions 8-1 Describing Chemical Reactions I. Introduction A. Reactants 1. Original substances entering into a chemical rxn B. Products 1. The resulting substances from
EXAMPLE EXERCISE 4.1 Change of Physical State
EXAMPLE EXERCISE 4.1 Change of Physical State State the term that applies to each of the following changes of physical state: (a) Snow changes from a solid to a liquid. (b) Gasoline changes from a liquid
EXPERIMENT 4 The Periodic Table - Atoms and Elements
EXPERIMENT 4 The Periodic Table - Atoms and Elements INTRODUCTION Primary substances, called elements, build all the materials around you. There are more than 109 different elements known today. The elements
Chemical Reactions Practice Test
Chemical Reactions Practice Test Chapter 2 Name Date Hour _ Multiple Choice Identify the choice that best completes the statement or answers the question. 1. The only sure evidence for a chemical reaction
Chapter 6 Assessment. Name: Class: Date: ID: A. Multiple Choice Identify the choice that best completes the statement or answers the question.
Name: Class: Date: ID: A Chapter 6 Assessment Multiple Choice Identify the choice that best completes the statement or answers the question. 1. When an atom loses an electron, it forms a(n) a. anion. c.
Atomic Structure Chapter 5 Assignment & Problem Set
Atomic Structure Name Warm-Ups (Show your work for credit) Date 1. Date 2. Date 3. Date 4. Date 5. Date 6. Date 7. Date 8. Atomic Structure 2 Study Guide: Things You Must Know Vocabulary (know the definition
Chapter 1 The Atomic Nature of Matter
Chapter 1 The Atomic Nature of Matter 6. Substances that cannot be decomposed into two or more simpler substances by chemical means are called a. pure substances. b. compounds. c. molecules. d. elements.
Getting the most from this book...4 About this book...5
Contents Getting the most from this book...4 About this book....5 Content Guidance Topic 1 Atomic structure and the periodic table...8 Topic 2 Bonding and structure...14 Topic 2A Bonding....14 Topic 2B
W1 WORKSHOP ON STOICHIOMETRY
INTRODUCTION W1 WORKSHOP ON STOICHIOMETRY These notes and exercises are designed to introduce you to the basic concepts required to understand a chemical formula or equation. Relative atomic masses of
47374_04_p25-32.qxd 2/9/07 7:50 AM Page 25. 4 Atoms and Elements
47374_04_p25-32.qxd 2/9/07 7:50 AM Page 25 4 Atoms and Elements 4.1 a. Cu b. Si c. K d. N e. Fe f. Ba g. Pb h. Sr 4.2 a. O b. Li c. S d. Al e. H f. Ne g. Sn h. Au 4.3 a. carbon b. chlorine c. iodine d.
Question Bank Electrolysis
Question Bank Electrolysis 1. (a) What do you understand by the terms (i) electrolytes (ii) non-electrolytes? (b) Arrange electrolytes and non-electrolytes from the following substances (i) sugar solution
Alkanes. Chapter 1.1
Alkanes Chapter 1.1 Organic Chemistry The study of carbon-containing compounds and their properties What s so special about carbon? Carbon has 4 bonding electrons. Thus, it can form 4 strong covalent bonds
INTI COLLEGE MALAYSIA A? LEVEL PROGRAMME CHM 111: CHEMISTRY MOCK EXAMINATION: DECEMBER 2000 SESSION. 37 74 20 40 60 80 m/e
CHM111(M)/Page 1 of 5 INTI COLLEGE MALAYSIA A? LEVEL PROGRAMME CHM 111: CHEMISTRY MOCK EXAMINATION: DECEMBER 2000 SESSION SECTION A Answer ALL EIGHT questions. (52 marks) 1. The following is the mass spectrum
Section 1: Arranging the Elements Pages 106-112
Study Guide Chapter 5 Periodic Table Section 1: Arranging the Elements Pages 106-112 DISCOVERING A PATTERN 1. How did Mendeleev arrange the elements? a. by increasing density b. by increasing melting point
2 The Structure of Atoms
CHAPTER 4 2 The Structure of Atoms SECTION Atoms KEY IDEAS As you read this section, keep these questions in mind: What do atoms of the same element have in common? What are isotopes? How is an element
19.1 Bonding and Molecules
Most of the matter around you and inside of you is in the form of compounds. For example, your body is about 80 percent water. You learned in the last unit that water, H 2 O, is made up of hydrogen and
PROTONS AND ELECTRONS
reflect Imagine that you have a bowl of oranges, bananas, pineapples, berries, pears, and watermelon. How do you identify each piece of fruit? Most likely, you are familiar with the characteristics of
UNIT (2) ATOMS AND ELEMENTS
UNIT (2) ATOMS AND ELEMENTS 2.1 Elements An element is a fundamental substance that cannot be broken down by chemical means into simpler substances. Each element is represented by an abbreviation called
Atoms and Molecules. Preparation. Objectives. Standards. Materials. Grade Level: 5-8 Group Size: 20-30 Time: 60 90 Minutes Presenters: 2-4
Atoms and Molecules Preparation Grade Level: 5-8 Group Size: 20-30 Time: 60 90 Minutes Presenters: 2-4 Objectives This lesson will enable students to: Describe how atoms are the building blocks of matter
Review - After School Matter Name: Review - After School Matter Tuesday, April 29, 2008
Name: Review - After School Matter Tuesday, April 29, 2008 1. Figure 1 The graph represents the relationship between temperature and time as heat was added uniformly to a substance starting at a solid
2. John Dalton did his research work in which of the following countries? a. France b. Greece c. Russia d. England
CHAPTER 3 1. Which combination of individual and contribution is not correct? a. Antoine Lavoisier - clarified confusion over cause of burning b. John Dalton - proposed atomic theory c. Marie Curie - discovered
87 16 70 20 58 24 44 32 35 40 29 48 (a) graph Y versus X (b) graph Y versus 1/X
HOMEWORK 5A Barometer; Boyle s Law 1. The pressure of the first two gases below is determined with a manometer that is filled with mercury (density = 13.6 g/ml). The pressure of the last two gases below