AP Chem Unit 1 Assignment 3 Chemical Equations

Size: px
Start display at page:

Download "AP Chem Unit 1 Assignment 3 Chemical Equations"

Transcription

1 Symbols used in chemical equations: Symbol Meaning + used to separate one reactant or product from another used to separate the reactants from the products - it is pronounced "yields" or "produces" when the equation is read used when the reaction can proceed in both directions or reversible- this is called an equilibrium arrow and will be used later in the course (g) indicates that the substance is in a gaseous state an alternative way of representing a substance in a gaseous state (s) indicates that the substance is in a solid state an alternative way of representing a substance in a solid state (aq) indicates that the substance is dissolved in water - the aq comes from aqueous; the term solution almost always indicates (aq) indicates that heat is applied to make the reaction proceed Phase symbols are required only when the information is known (ex: from lab observations or given information Diatomic elements: Elements that, when alone (not part of a compound with another element), are coupled: H, N, O, F, Cl, Br, I Physical change vs chemical change: chemical changes ALWAYS involve a change in the arrangement of the atoms, which requires chemical bonds to be broken a/o formed. Writing Complete Equations Practice do ALL For each of the following, translate the word equation into a balanced formula equation. In THESE examples, there is enough info to include phase symbols. You do NOT need to indicate if the reaction is reversible. 1) When solid lithium hydroxide pellets are added to a solution of dihydrogen sulfate, aqueous lithium sulfate and water are formed. 2) When solid potassium reacts with water, aqueous potassium hydroxide and hydrogen gas is formed. 3) Tricarbon octahydride (aka propane) is heated in the presence of oxygen gas, resulting in the formation of water vapor and carbon dioxide gas.

2 Balancing Chemical Equations Balance the equations below. You are only required to balance the equations in bold. 1) N 2 + H 2 NH 3 2) KClO 3 KCl + O 2 3) NaCl + F 2 NaF + Cl 2 4) H 2 + O 2 H 2 O 5) Pb(OH) 2 + HCl H 2 O + PbCl 2 6) AlBr 3 + K 2 SO 4 KBr + Al 2 (SO 4 ) 3 7) CH 4 + O 2 CO 2 + H 2 O 8) C 3 H 8 + O 2 CO 2 + H 2 O 9) C 8 H 18 + O 2 CO 2 + H 2 O 10) FeCl 3 + NaOH Fe(OH) 3 + NaCl 11) P + O 2 P 2 O 5 12) Na + H 2 O NaOH + H 2 13) Ag 2 O Ag + O 2 14) S 8 + O 2 SO 3 15) CO 2 + H 2 O C 6 H 12 O 6 + O 2 16) K + MgBr 2 KBr + Mg 17) HCl + CaCO 3 CaCl 2 + H 2 O + CO 2 18) HNO 3 + NaHCO 3 NaNO 3 + H 2 O + CO 2 19) H 2 O + O 2 H 2 O 2 20) NaBr + CaF 2 NaF + CaBr 2 21) H 2 SO 4 + NaNO 2 HNO 2 + Na 2 SO 4

3 Word Equations Write the word equations below as chemical equations and balance. Do not include phase symbols. You are required to do those in bold. 1) Zinc and lead (II) nitrate react to form zinc nitrate and lead. 2) Aluminum bromide and chlorine gas react to form aluminum chloride and bromine gas. 3) Sodium phosphate and calcium chloride react to form calcium phosphate and sodium chloride. 4) Potassium metal and chlorine gas combine to form potassium chloride. 5) Aluminum and hydrochloric acid (hydrogen chloride) react to form aluminum chloride and hydrogen gas. 6) Calcium hydroxide and phosphoric acid (trihydrogen phosphate) react to form calcium phosphate and water. 7) Copper and sulfuric acid (dihydrogen sulfate) react to form copper (II) sulfate and water and sulfur dioxide. 8) Hydrogen gas and nitrogen monoxide react to form water and nitrogen gas.

4 Word Equations Answer Key Writing Complete Equations Practice do ALL For each of the following, translate the word equation into a balanced formula equation. In THESE examples, there is enough info to include phase symbols. You do NOT need to indicate if the reaction is reversible. 1) When solid lithium hydroxide pellets are added to a solution of dihydrogen sulfate, aqueous lithium sulfate and water are formed. Unbalanced: LiOH(s) + H 2 SO 4 (aq) Li 2 SO 4 (aq) + H 2 O (l) Balanced: 2 LiOH(s) + H 2 SO 4 (aq) Li 2 SO 4 (aq) + 2 H 2 O (l) 2) When solid potassium reacts with water, aqueous potassium hydroxide and hydrogen gas is formed. Unbalanced: K(s) + H 2 O (l) KOH (aq) + H 2 (g) Balanced: 2K(s) + 2H 2 O (l) 2KOH (aq) + H 2 (g) 3) Tricarbon octahydride (aka propane) is heated in the presence of oxygen gas, resulting in the formation of water vapor and carbon dioxide gas. Unbalanced: C 3 H 8 + O 2 (g) H 2 O (g) + CO 2 (g) Balanced: C 3 H O 2 (g) 4H 2 O (g) + 3CO 2 (g)

5 Balancing Chemical Equations Answer Key Balance the equations below: 1) 1 N H 2 2 NH 3 2) 2 KClO 3 2 KCl + 3 O 2 3) 2 NaCl + 1 F 2 2 NaF + 1 Cl 2 4) 2 H O 2 2 H 2 O 5) 1 Pb(OH) HCl 2 H 2 O + 1 PbCl 2 6) 2 AlBr K 2 SO 4 6 KBr + 1 Al 2 (SO 4 ) 3 7) 1 CH O 2 1 CO H 2 O 8) 1 C 3 H O 2 3 CO H 2 O 9) 2 C 8 H O 2 16 CO H 2 O 10) 1 FeCl NaOH 1 Fe(OH) NaCl 11) 4 P + 5 O 2 2 P 2 O 5 12) 2 Na + 2 H 2 O 2 NaOH + 1 H 2 13) 2 Ag 2 O 4 Ag + 1 O 2 14) 1 S O 2 8 SO 3 15) 6 CO H 2 O 1 C 6 H 12 O O 2 16) 2 K + 1 MgB 2 2 KBr + 1 Mg 17) 2 HCl + 1 CaCO 3 1 CaCl H 2 O + 1 CO 2 18) 1 HNO NaHCO 3 1 NaNO H 2 O + 1 CO 2 19) 2 H 2 O + 1 O 2 2 H 2 O 2 20) 2 NaBr + 1 CaF 2 2 NaF + 1 CaBr 2 21) 1 H 2 SO NaNO 2 2 HNO Na 2 SO 4

6 Word Equations Answer Key 1) Zinc and lead (II) nitrate react to form zinc nitrate and lead. Zn + Pb(NO 3 ) 2 Zn(NO 3 ) 2 + Pb 2) Aluminum bromide and chlorine gas react to form aluminum chloride and bromine gas. 2 AlBr Cl 2 2 AlCl Br 2 3) Sodium phosphate and calcium chloride react to form calcium phosphate and sodium chloride. 2 Na 3 PO CaCl 2 6 NaCl + Ca 3 (PO 4 ) 2 4) Potassium metal and chlorine gas combine to form potassium chloride. 2 K + Cl 2 2 KCl 5) Aluminum and hydrochloric acid react to form aluminum chloride and hydrogen gas. 2 Al + 6 HCl 3 H AlCl 3 6) Calcium hydroxide and phosphoric acid react to form calcium phosphate and water. 3 Ca(OH) H 3 PO 4 Ca 3 (PO 4 ) H 2 O 7) Copper and sulfuric acid react to form copper (II) sulfate and water and sulfur dioxide. Cu + 2 H 2 SO 4 CuSO H 2 O + SO 2 8) Hydrogen gas and nitrogen monoxide react to form water and nitrogen gas. 2 H NO 2 H 2 O + N 2

Balancing Equations Notes

Balancing Equations Notes . Unit 9 Chemical Equations and Reactions What is a Chemical Equation? A Chemical Equation is a written representation of the process that occurs in a chemical reaction. A chemical equation is written

More information

Balancing Equations Notes

Balancing Equations Notes Unit 7 Chemical Equations and Reactions What is a Chemical Equation? A Chemical Equation is a written representation of the process that occurs in a chemical reaction. A chemical equation is written with

More information

Balancing Chemical Equations Worksheet

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.

More information

Chapter 8 Chemical Equations and Reactions

Chapter 8 Chemical Equations and Reactions Chapter 8 Chemical Equations and Reactions 1 Section 8.1 Objectives: List 3 observations that suggest that a chemical reaction has taken place. List 3 requirements for a correctly written chemical reaction.

More information

Chapter 9. Answers to Questions

Chapter 9. Answers to Questions Chapter 9 Answers to Questions 1. Word equation: Silicon Tetrachloride + Water Silicon Dioxide + Hydrogen Chloride Formulas: Next, the chemical formulas are needed. As these are all covalent compounds,

More information

Chemical Reactions and Equations. Chapter 8

Chemical Reactions and Equations. Chapter 8 Chemical Reactions and Equations Chapter 8 Describing Chemical Reactions A chemical reaction is the process by which one or more substances are changed into different substances Reactants Products When

More information

CHEMICAL REACTIONS. represent energy (heat, light, energy) as either a product or a reactant by writing it on the appropriate side of the equation.

CHEMICAL REACTIONS. represent energy (heat, light, energy) as either a product or a reactant by writing it on the appropriate side of the equation. Page1 CHEMICAL REACTIONS We have already discussed the fact that sometimes individual atoms (and in the case of polyatomic ions small groups of atoms) can join together to form compounds in order to increase

More information

Ch 8 Notes: Chemical Equations and Reactions

Ch 8 Notes: Chemical Equations and Reactions Name: Ch 8 Notes: Chemical Equations and Reactions I. Chemical Equations A properly written chemical equation can summarize any chemical change. The following requirements will help you write and read

More information

Do Now CHEMICAL REACTIONS. Chemical Reaction. chemical reaction. Chemical Equations. Evidence

Do Now CHEMICAL REACTIONS. Chemical Reaction. chemical reaction. Chemical Equations. Evidence Do Now CHEMICAL REACTIONS What are some signs that a chemical change may have taken place? Where are the reactants and products in a reaction? What do they represent? Describe the law of conservation of

More information

Unit 7 A1 Worksheet: Writing and Balancing Chemical Equations

Unit 7 A1 Worksheet: Writing and Balancing Chemical Equations Name Period Unit 7 A1 Worksheet: Writing and Balancing Chemical Equations 1. Describe the following word equation with a statement or sentence: Iron + Oxygen iron (III) oxide 2. In a chemical equation,

More information

13 Chemical Reactions

13 Chemical Reactions www.ck12.org 275 CHAPTER 13 Chemical Reactions CHAPTER OUTLINE 13.1 CHEMICAL REACTIONS AND EQUATIONS 13.2 BALANCING CHEMICAL EQUATIONS 13.3 TYPES OF REACTIONS CHAPTER 13. CHEMICAL REACTIONS 276 www.ck12.org

More information

Types of Chemical Reactions

Types of Chemical Reactions Why? Types of Chemical Reactions Do atoms rearrange in predictable patterns during chemical reactions? Recognizing patterns allows us to predict future behavior. Weather experts use patterns to predict

More information

Types of Reactions. CK12 Editor. Say Thanks to the Authors Click (No sign in required)

Types of Reactions. CK12 Editor. Say Thanks to the Authors Click  (No sign in required) Types of Reactions CK12 Editor Say Thanks to the Authors Click http://www.ck12.org/saythanks (No sign in required) To access a customizable version of this book, as well as other interactive content, visit

More information

Part I: Parts and Meaning of a Chemical Equation:

Part I: Parts and Meaning of a Chemical Equation: Chemical Equations Name: Period: Date: Part I: Parts and Meaning of a Chemical Equation: 1) = process by which one or more substances are changed into one or more different substances (atoms are rearranged)

More information

SCIENCE NSPIRED. Open the TI-Nspire TM document Balancing_Chemical_Equations_Practice.tns.

SCIENCE NSPIRED. Open the TI-Nspire TM document Balancing_Chemical_Equations_Practice.tns. Open the TI-Nspire TM document Balancing_Chemical_Equations_Practice.tns. In this activity you will use ChemBox feature of TI-Nspire TM technology to practice balancing chemical equations. Move to pages

More information

Answers and Solutions to Text Problems

Answers and Solutions to Text Problems Chapter 6 Answers and Solutions 6 Answers and Solutions to Text Problems 6.1 A chemical change occurs when the atoms of the initial substances rearrange to form new substances. Chemical change is indicated

More information

Reaction Type & Balancing Review Questions

Reaction Type & Balancing Review Questions Reaction Type & Balancing Review Questions There are 20 questions sets in this review. The corresponding answers can be found in the second half of this document. 1. Match the term with its proper description.

More information

Unit 8: Chemical Reactions and Equations

Unit 8: Chemical Reactions and Equations 1 Chemical Reactions Unit 8: Chemical Reactions and Equations What are chemical reactions and how do they occur? How are chemical reactions classified? How are products of chemical reactions predicted?

More information

Unit 10A Stoichiometry Notes

Unit 10A Stoichiometry Notes Unit 10A Stoichiometry Notes Stoichiometry 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

More information

Balancing Chemical Equations

Balancing Chemical Equations Balancing Chemical Equations 1. sodium carbonate + calcium hydroxide sodium hydroxide + calcium carbonate Na 2 CO 3 + Ca(OH) 2 2 NaOH + CaCO 3 2. carbon dioxide + water carbonic acid CO 2 + H 2 O H 2 CO

More information

Stoichiometry Review

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

More information

Potassium + Chlorine. K(s) + Cl 2 (g) 2 KCl(s)

Potassium + Chlorine. K(s) + Cl 2 (g) 2 KCl(s) Types of Reactions Consider for a moment the number of possible chemical reactions. Because there are millions of chemical compounds, it is logical to expect that there are millions of possible chemical

More information

Writing and Balancing Chemical Equations

Writing and Balancing Chemical Equations Name Writing and Balancing Chemical Equations Period When a substance undergoes a chemical reaction, chemical bonds are broken and new bonds are formed. This results in one or more new substances, often

More information

Easy Examples: Hd 10 + Bu 8 HdBu. Introduction. (l) or (aq)? Introduction. Symbols. Yields or Produces. Balancing. (l) or (aq)?

Easy Examples: Hd 10 + Bu 8 HdBu. Introduction. (l) or (aq)? Introduction. Symbols. Yields or Produces. Balancing. (l) or (aq)? Chemical Equations Chemical Equations Like a recipe: Introduction Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) Symbols (s) (l) (aq) (g) Introduction Yields or Produces solid liquid aqueous gas (l) or

More information

Chapter 8: Chemical Equations and Reactions

Chapter 8: Chemical Equations and Reactions Chapter 8: Chemical Equations and Reactions I. Describing Chemical Reactions A. A chemical reaction is the process by which one or more substances are changed into one or more different substances. A chemical

More information

STOICHOMETRY UNIT Determine the mass of carbon present in a sample of glucose weighing 5.4 g.

STOICHOMETRY UNIT Determine the mass of carbon present in a sample of glucose weighing 5.4 g. PERCENTAGE COMPOSITION STOICHOMETRY UNIT 3 1. A sample of magnesium weighing 2.246 g burns in oxygen to form 3.724 g of magnesium oxide. What are the percentages of magnesium and oxygen in magnesium oxide?

More information

1. Sb + Cl 2 SbCl Mg + O 2 MgO _. 3. CaCl 2 Ca + Cl NaClO 3 NaCl + O Fe + HCl FeCl 2 + H CuO + H 2 Cu + H 2 O

1. Sb + Cl 2 SbCl Mg + O 2 MgO _. 3. CaCl 2 Ca + Cl NaClO 3 NaCl + O Fe + HCl FeCl 2 + H CuO + H 2 Cu + H 2 O Year 11 Chemistry Balancing Equations 1. Sb + Cl 2 SbCl 3 2. Mg + O 2 MgO _ 3. CaCl 2 Ca + Cl 2 4. NaClO 3 NaCl + O 2 5. Fe + HCl FeCl 2 + H 2 6. CuO + H 2 Cu + H 2 O 7. Al + H 2 SO 4 Al 2 (SO 4 ) 3 +

More information

USEFUL DEFINITIONS. A substance which cannot be split into anything simpler by chemical means.

USEFUL DEFINITIONS. A substance which cannot be split into anything simpler by chemical means. Formulae and equations 1 USEFUL DEFINITIONS Element Atom A substance which cannot be split into anything simpler by chemical means. The smallest part of an element that can take part in a chemical reaction.

More information

USEFUL DEFINITIONS. A substance which cannot be split into anything simpler by chemical means.

USEFUL DEFINITIONS. A substance which cannot be split into anything simpler by chemical means. 1 USEFUL DEFINITIONS Element Atom Molecule A substance which cannot be split into anything simpler by chemical means. The smallest part of an element that can take part in a chemical reaction. The smallest

More information

2. In a double displacement reaction, 3. In the chemical equation, H 2 O 2 H 2 + O 2, the H 2 O 2 is a

2. In a double displacement reaction, 3. In the chemical equation, H 2 O 2 H 2 + O 2, the H 2 O 2 is a What are the missing coefficients for the skeleton equation below? Al 2 (SO 4 ) 3 + KOH Al(OH) 3 + K 2 SO 4 2. In a double displacement reaction, A. 1,6,2,3 B. 2,12,4,6 C. 1,3,2,3 D. 4,6,2,3 E. 2,3,1,1

More information

Unit 6: Reactions and Stoichiometry (Link to Prentice Hall Text: Chapters 7, 8 & 9)

Unit 6: Reactions and Stoichiometry (Link to Prentice Hall Text: Chapters 7, 8 & 9) R e a c t i o n s a n d S t o i c h i o m e t r y N o t e s P a g e 1 Unit 6: Reactions and Stoichiometry (Link to Prentice Hall Text: Chapters 7, 8 & 9) Name: Date Due Assignments Page Number: Problem

More information

Name Class Date. Step 3: Write the equation using formulas for the elements and compounds in the word equation. Al CuCl 2 : AlCl 3 Cu

Name Class Date. Step 3: Write the equation using formulas for the elements and compounds in the word equation. Al CuCl 2 : AlCl 3 Cu Skills Worksheet Math Skills Balancing Chemical Equations After you study each sample problem and solution, work out the practice problems on a separate sheet of paper. Write your answers in the spaces

More information

Identify the letter of the choice that best completes the statement or answers the question.

Identify the letter of the choice that best completes the statement or answers the question. Chemistry Test - Chapter 10 Chemical Equations Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. When balancing a chemical equation, insert

More information

CHM1 Review for Exam 9

CHM1 Review for Exam 9 Topics 1. Reaction Types a. Combustion b. Synthesis c. Decomposition d. Single replacement i. Metal activity series ii. Nonmetal activity series e. Double replacement i. Precipitates and solubility rules

More information

WRITE IN THE CORRECT FORMULA THEN BALANCE THE CHEMICAL EQUATIONS

WRITE IN THE CORRECT FORMULA THEN BALANCE THE CHEMICAL EQUATIONS WRITE IN THE CORRECT FORMULA THEN BALANCE THE CHEMICAL EQUATIONS 1. Hydrogen Oxygen Water METALLIC OXIDE WATER BASE 2. Sodium oxide Water Sodium hydroxide 3. Calcium oxide Water Calcium hydroxide 4. Potassium

More information

Chemical Equations. What is a chemical equation? How do you balance a chemical equation? How do you identify the type of chemical equation?

Chemical Equations. What is a chemical equation? How do you balance a chemical equation? How do you identify the type of chemical equation? Chemical Equations What is a chemical equation? How do you balance a chemical equation? How do you identify the type of chemical equation? Chemical Equations A chemical equation is written as an expression

More information

Ch. 9 Chemical Reactions

Ch. 9 Chemical Reactions Ch. 9 Chemical Reactions I. Intro to Reactions (p. 282 285) I II III IV V Chemical Reaction Chemical change Atoms of one or more substances (reactants) are rearranged into new substances (products) Signs

More information

2. Draw the Bohr-Rutherford diagrams for the following Ions: S 2-, Al +3, Li +1, P -3

2. Draw the Bohr-Rutherford diagrams for the following Ions: S 2-, Al +3, Li +1, P -3 1. Complete the following table: ATOMIC STRUCTURE Name Symbol # protons # neutrons # electrons Net charge Sodium ion Na +1 +1 Oxygen atom Gold ion +3 C Cl -1 Cesium ion +1 12 +2 16-2 18 +1 10 0 Ba +2 Helium

More information

CP Chapter 12 Stoichiometry

CP Chapter 12 Stoichiometry CP Chapter 12 Stoichiometry What is Stoichiometry? ( STOY-KEE-AHM-EH-TREE) Stoichiometry is the part of chemistry that studies amounts of reactants and products that are involved in reactions. Chemists

More information

CP Chapter 11 Notes Reactions and Equations

CP Chapter 11 Notes Reactions and Equations CP Chapter 11 Notes Reactions and Equations Evidence of Chemical Reactions How can you tell a reaction has taken place? Temperature change Color change Gas/bubbles Appearance of a (precipitate) Chemical

More information

SNC2D Chemistry Review

SNC2D Chemistry Review SNC2D Chemistry Review Name: Draw the Bohr-Rutherford diagram for each of the following atoms and determine the valence charge of their ions: Sodium: Aluminum: Sulfur: Fluorine: From your periodic table/chemistry

More information

Chemical Reactions Chapter 8 Assignment & Problem Set

Chemical Reactions Chapter 8 Assignment & Problem Set Chemical Reactions Name Warm-Ups (Show your work for credit) Date 1. Date 2. Date 3. Date 4. Date 5. Date 6. Date 7. Date 8. Chemical Reactions 2 Study Guide: Things You Must Know Vocabulary (know the

More information

Using the Periodic table: Main Group. Using the Periodic Table:Transition Group. Binary Compounds: Names, Formulae

Using the Periodic table: Main Group. Using the Periodic Table:Transition Group. Binary Compounds: Names, Formulae Using the Periodic table: Main Group Main Group Elements 1 Using the Periodic Table:Transition Group Transition Metals Form various cations by loss of electrons e.g. Fe 2+ / Fe 3+, Cu + / Cu 2+ Cr 2+ /

More information

Practice Reaction Type and Predicting the Products

Practice Reaction Type and Predicting the Products Practice Reaction Type and Predicting the Products For each of the following: The first one is an example. a. Determine the TYPE of reaction by looking at your Reaction Type Sheets and write the type in

More information

Steps for balancing a chemical equation

Steps for balancing a chemical equation The Chemical Equation: A Chemical Recipe Dr. Gergens - SD Mesa College A. Learn the meaning of these arrows. B. The chemical equation is the shorthand notation for a chemical reaction. A chemical equation

More information

Net Ionic Equations Making Sense of Chemical Reactions

Net Ionic Equations Making Sense of Chemical Reactions 14 Making Sense of Chemical Reactions OBJECTIVE Students will be able to write net ionic equations from balanced molecular equations. LEVEL Chemistry NATIONAL STANDARDS UCP.1, UCP.2, B.3 T E A C H E R

More information

Equation Writing. CO 2 + H 2 O H 2 CO 3 reactants products

Equation Writing. CO 2 + H 2 O H 2 CO 3 reactants products Equation Writing A chemical equation is a concise shorthand expression which represents the relative amount of reactants and products involved in a chemical reaction. CO 2 + H 2 O H 2 CO 3 reactants products

More information

CHEMICAL EQUATIONS and REACTION TYPES

CHEMICAL EQUATIONS and REACTION TYPES 31 CHEMICAL EQUATIONS and REACTION TYPES The purpose of this laboratory exercise is to develop skills in writing and balancing chemical equations. The relevance of this exercise is illustrated by a series

More information

Experiment 9 - Double Displacement Reactions

Experiment 9 - Double Displacement Reactions Experiment 9 - Double Displacement Reactions A double displacement reaction involves two ionic compounds that are dissolved in water. In a double displacement reaction, it appears as though the ions are

More information

c. PCl 3 (l) + 3H 2 O(l) H 3 PO 3 (l) + 3HCl(g)

c. PCl 3 (l) + 3H 2 O(l) H 3 PO 3 (l) + 3HCl(g) Chapter 9 Chemical Quantities 1. Although we define mass as the amount of matter in a substance, the units in which we measure mass are a human invention. Atoms and molecules react on an individual particleby-particle

More information

Answers to Practice Problems 6.1, p Answers to Practice Problems 6.2, p. 227

Answers to Practice Problems 6.1, p Answers to Practice Problems 6.2, p. 227 Answers to Practice Problems 6.1, p. 226 1. This is a synthesis reaction (between a metal and a non-metal). The balanced chemical equation is: 2Li + Cl 2 2LiCl. 2. This is a synthesis reaction (between

More information

Test 4: Equations and Math of Equations Review

Test 4: Equations and Math of Equations Review Name: Tuesday, November 27, 2007 Test 4: Equations and Math of Equations Review 1. Given the balanced equation: 2KClO 2KCl + 3O 3 2 Which type of reaction is represented by this equation? 1. synthesis

More information

Experiment 5. Chemical Reactions A + X AX AX A + X A + BX AX + B AZ + BX AX + BZ

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

More information

CHAPTER 9 CALCULATIONS FROM CHEMICAL EQUATIONS SOLUTIONS TO REVIEW QUESTIONS. = 2 mol PH 3. a g b = 0.4 g PH. = 12 mol H 2 O.

CHAPTER 9 CALCULATIONS FROM CHEMICAL EQUATIONS SOLUTIONS TO REVIEW QUESTIONS. = 2 mol PH 3. a g b = 0.4 g PH. = 12 mol H 2 O. HEINS09-095-117v4.qxd 1/30/06 1:58 PM Page 95 CHAPTER 9 CALCULATIONS FROM CHEMICAL EQUATIONS SOLUTIONS TO REVIEW QUESTIONS 1. A e ratio is the ratio between the e amounts of two atoms and/or ecules involved

More information

Chemistry Themed. Types of Reactions

Chemistry Themed. Types of Reactions Chemistry Themed Types of Reactions 1 2 Chemistry in the Community-2015-2016 Types of Reactions Date In-Class Assignment Homework T 10/20 TEST on Reactivity of Metals and Redox None W 10/21 Late Start

More information

Chapter 6 Notes Science 10 Name:

Chapter 6 Notes Science 10 Name: 6.1 Types of Chemical Reactions a) Synthesis (A + B AB) Synthesis reactions are also known as reactions. When this occurs two or more reactants (usually elements) join to form a. A + B AB, where A and

More information

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 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

More information

Balancing Chemical Equations Practice

Balancing Chemical Equations Practice Science Objectives Students will describe what reactants and products in a chemical equation mean. Students will explain the difference between coefficients and subscripts in chemical equations. Students

More information

Unit 2. Molar Mass Worksheet

Unit 2. Molar Mass Worksheet Unit 2 Molar Mass Worksheet Calculate the molar masses of the following chemicals: 1) Cl 2 8) UF 6 2) KOH 9) SO 2 3) BeCl 2 10) H 3 PO 4 4) FeCl 3 11) (NH 4 ) 2 SO 4 5) BF 3 12) CH 3 COOH 6) CCl 2 F 2

More information

Unit 9 Stoichiometry Notes (The Mole Continues)

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

More information

Date: October 31, 2016 Objective: Name binary ionic compounds. Add ionic charges to your Periodic Table:

Date: October 31, 2016 Objective: Name binary ionic compounds. Add ionic charges to your Periodic Table: Do Now Date: October 31, 2016 Objective: Name binary ionic compounds. Add ionic charges to your Periodic Table: Quick practice Classify as ionic or covalent: CaCl 2 H 2 O KI NaCl Ca 2+ Ionic compounds

More information

Worksheet # 11. 4. When heated, nickel (II) carbonate undergoes a decomposition reaction. Write a balanced equation to describe this reaction

Worksheet # 11. 4. When heated, nickel (II) carbonate undergoes a decomposition reaction. Write a balanced equation to describe this reaction Worksheet # 11 1. A solution of sodium chloride is mixed with a solution of lead (II) nitrate. A precipitate of lead (II) chloride results, leaving a solution of sodium nitrated. Determine the class of

More information

3. Calculate the number of grams of oxygen produced if 2.50 grams of potassium chlorate are decomposed completely by heating.

3. Calculate the number of grams of oxygen produced if 2.50 grams of potassium chlorate are decomposed completely by heating. UNIT 9 - STOICHIOMETRY Stoichiometry Problems 1 Worksheet 1. When lead (II) sulfide is burned in air, lead (II) oxide and sulfur dioxide are produced. If 0.890 moles of sulfur dioxide were produced, how

More information

CHEMICAL REACTIONS. When sodium bicarbonate, e.g. baking soda, is combined with an acid, a gas is produced

CHEMICAL REACTIONS. When sodium bicarbonate, e.g. baking soda, is combined with an acid, a gas is produced CHEMICAL REACTIONS OBJECTIVES 1. To study reactions between ions in aqueous solutions 2. To observe exothermic and endothermic reactions 3. To study oxidation-reduction reactions 4. To practice balancing

More information

What physical evidence do we have that sodium hydroxide dissociates into ions when it dissolves in water? NaOH(s) Na + + OH -

What physical evidence do we have that sodium hydroxide dissociates into ions when it dissolves in water? NaOH(s) Na + + OH - Chemistry Date Period Name CW double replacement reactions 030812.doc Double Replacement Reactions Double replacement reactions are some of the most common reactions that are performed in the laboratory.

More information

Name: Class: Date: 2 4 (aq)

Name: Class: Date: 2 4 (aq) Name: Class: Date: Unit 4 Practice Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1) The balanced molecular equation for complete neutralization of

More information

Chemical Reactions and Equations

Chemical Reactions and Equations Chemical Reactions and Equations Thousands of chemical reactions take place in nature, in industrial processes, and in laboratories. They are described by Chemical Equations. There are two sides to a chemical

More information

Tutorial 4 SOLUTION STOICHIOMETRY. Solution stoichiometry calculations involve chemical reactions taking place in solution.

Tutorial 4 SOLUTION STOICHIOMETRY. Solution stoichiometry calculations involve chemical reactions taking place in solution. T-27 Tutorial 4 SOLUTION STOICHIOMETRY Solution stoichiometry calculations involve chemical reactions taking place in solution. Of the various methods of expressing solution concentration the most convenient

More information

Write chemical equations for the following reactions: Reactants Products Unbalanced. Water H 2 O. and

Write chemical equations for the following reactions: Reactants Products Unbalanced. Water H 2 O. and Chemical Equations 17.2 Chemical symbols provide us with a shorth method of writing the name of an element. Chemical formulas do the same for compounds. But what about chemical reactions? To write out,

More information

Balancing Chemical Equations

Balancing Chemical Equations Balancing Chemical Equations Aluminum reacts with copper(ii) chloride, CuCl 2, to form copper metal and aluminum chloride, AlCl 3 1. Identify the reactants and products. Aluminum and copper(ii) chloride

More information

The formation of a gas is evidence of. 1. A chemical change. 2. A physical change. 3. No change in energy 4. Both (1) and (2)

The formation of a gas is evidence of. 1. A chemical change. 2. A physical change. 3. No change in energy 4. Both (1) and (2) Chapter 8 Review The formation of a gas is evidence of 1. A chemical change. 2. A physical change. 3. No change in energy 4. Both (1) and (2) The formation of a gas is evidence of 1. A chemical change.

More information

FORMULA WRITNG. 17. Sodium Phosphate 18. Iron (III) Chloride. 19. Potassium Carbonate 20. Copper (I) Hypochlorite

FORMULA WRITNG. 17. Sodium Phosphate 18. Iron (III) Chloride. 19. Potassium Carbonate 20. Copper (I) Hypochlorite FORMULA WRITNG Problem Set 8.1 Name: Hour: Date: Three basic rules in writing formulas: 1. Positive ion first, negative ion second. 2. Total positive charges much equal total negative charge. 3. The parentheses

More information

STOICHIOMETRY STOICHIOMETRY. Measurements in Chemical Reactions. Mole-Mole Relationships. Mass-Mass Problem. Mole-Mole Relationships

STOICHIOMETRY STOICHIOMETRY. Measurements in Chemical Reactions. Mole-Mole Relationships. Mass-Mass Problem. Mole-Mole Relationships STOICHIOMETRY STOICHIOMETRY The analysis of the quantities of substances in a chemical reaction. Stoichiometric calculations depend on the MOLE- MOLE relationships of substances. Measurements in Chemical

More information

Chapter 8 Review and Study Guide

Chapter 8 Review and Study Guide Name: Class: Date: Chapter 8 Review and Study Guide Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Knowledge about what products are produced in a chemical

More information

Chemistry Continuing Practice Packet

Chemistry Continuing Practice Packet Chemistry Continuing Practice Packet Mrs. Andrechek Webberville High School The best way to learn and remember chemistry is to practice. Check out the following websites: http://www.chemistrylecturenotes.com

More information

1.24 Calculations and Chemical Reactions

1.24 Calculations and Chemical Reactions 1.24 Calculations and Chemical Reactions Converting quantities between different substances using a balanced equation A balanced chemical equation tells us the number of particles of a substance which

More information

EXPERIMENT #12 DOUBLE-REPLACEMENT REACTIONS

EXPERIMENT #12 DOUBLE-REPLACEMENT REACTIONS EXPERIMENT #12 DOUBLE-REPLACEMENT REACTIONS Purpose: 1. To study the most common type of double-replacement reactions. Principles: In double-replacement reactions, two compounds are involved in a reaction,

More information

What is a chemical reaction?

What is a chemical reaction? Chapter 5 Chemical Reactions and Equations What is a chemical reaction? How do we know a chemical reaction occurs? Writing chemical equations Predicting chemical reactions Representing reactions in aqueous

More information

Name Date Class CHEMICAL REACTIONS. SECTION 8.1 DESCRIBING CHEMICAL CHANGE (pages )

Name Date Class CHEMICAL REACTIONS. SECTION 8.1 DESCRIBING CHEMICAL CHANGE (pages ) 8 CHEMICAL REACTIONS SECTION 8.1 DESCRIBING CHEMICAL CHANGE (pages 203 211) This section explains how to write equations describing chemical reactions using appropriate symbols. It also describes how to

More information

Chemical Equations. Chemical Equations. Chemical reactions describe processes involving chemical change

Chemical Equations. Chemical Equations. Chemical reactions describe processes involving chemical change Chemical Reactions Chemical Equations Chemical reactions describe processes involving chemical change The chemical change involves rearranging matter Converting one or more pure substances into new pure

More information

Combination Reactions 2H 2 + O 2 2H 2 O. 2Na + I 2 2NaI. Ca + Cl 2 CaCl 2. C + O 2 CO 2 or 2C + O 2 2CO 3H 2 + N 2 2NH 3

Combination Reactions 2H 2 + O 2 2H 2 O. 2Na + I 2 2NaI. Ca + Cl 2 CaCl 2. C + O 2 CO 2 or 2C + O 2 2CO 3H 2 + N 2 2NH 3 Combination Reactions Predict the product and write balanced reactions for each of the following. 1. Hydrogen burned in oxygen. 2H 2 + O 2 2H 2 O 2. Sodium plus iodine. 2Na + I 2 2NaI 3. Calcium burned

More information

Chapter 5 Chemical Reactions and Equations

Chapter 5 Chemical Reactions and Equations Chapter 5 Chemical Reactions and Equations 5.1 (a) single-displacement reaction; (b) anhydrous; (c) molecular equation; (d) decomposition reaction; (e) balanced equation; (f) reactant; (g) spectator ion;

More information

Types of Chemical Reactions (rxns.)

Types of Chemical Reactions (rxns.) Types of Chemical Reactions (rxns.) Chemical reactions occur when bonds (between the electrons of atoms) are formed or broken Chemical reactions involve l changes in the chemical composition of matter

More information

Chemical reactions. Classifications Reactions in solution Ionic equations

Chemical reactions. Classifications Reactions in solution Ionic equations Chemical reactions Classifications Reactions in solution Ionic equations Learning objectives Distinguish between chemical and physical change Write and balance chemical equations Describe concepts of oxidation

More information

Chemistry Continuing Practice Packet

Chemistry Continuing Practice Packet Chemistry Continuing Practice Packet Mrs. Andrechek Webberville High School The best way to learn and remember chemistry is to practice. Check out the following apps: - Mahjong Chem - Formulas Lite - Atoms

More information

Experiment 17-Chemical Reactions Lab

Experiment 17-Chemical Reactions Lab Since the Middle Ages, when ancient physicians attempted to find a magical substance that would cure all diseases, humans have been fascinated with chemical reactions. In order to effectively describe

More information

Moles. Moles. Moles. Moles. Balancing Eqns. Balancing. Balancing Eqns. Symbols Yields or Produces. Like a recipe:

Moles. Moles. Moles. Moles. Balancing Eqns. Balancing. Balancing Eqns. Symbols Yields or Produces. Like a recipe: Like a recipe: Balancing Eqns Reactants Products 2H 2 (g) + O 2 (g) 2H 2 O(l) coefficients subscripts Balancing Eqns Balancing Symbols (s) (l) (aq) (g) or Yields or Produces solid liquid (pure liquid)

More information

3. How many moles of KCl and O 2 are formed from the decomposition of 6 moles of KClO 3?

3. How many moles of KCl and O 2 are formed from the decomposition of 6 moles of KClO 3? What coefficients mean: 2 Na + Cl 2 2NaCl 2 Na 1 Cl 2 2NaCl 4 Na 2 Na + Cl 2 4Cl 2 6 moles Na 2NaCl 10 atoms Na ONLY WORKS FOR MOLES, MOLECULES, ATOMS 1. How many moles of H 2 and O 2 must react to form

More information

Chemical Equations and Chemical Reactions. Chapter 8.1

Chemical Equations and Chemical Reactions. Chapter 8.1 Chemical Equations and Chemical Reactions Chapter 8.1 Objectives List observations that suggest that a chemical reaction has taken place List the requirements for a correctly written chemical equation.

More information

Chemical Reactions, Counting Atoms, and Balancing Chemical Equations.

Chemical Reactions, Counting Atoms, and Balancing Chemical Equations. Chemical Reactions, Counting Atoms, and Balancing Chemical Equations. A Chemical Reaction is A process where one or more elements or compounds are changed into one or more different substances A process

More information

Chemistry: Chemical Equations

Chemistry: Chemical Equations Chemistry: Chemical Equations Write a balanced chemical equation for each word equation. Include the phase of each substance in the equation. Classify the reaction as synthesis, decomposition, single replacement,

More information

Periodic Table, Valency and Formula

Periodic Table, Valency and Formula Periodic Table, Valency and Formula Origins of the Periodic Table Mendelѐѐv in 1869 proposed that a relationship existed between the chemical properties of elements and their atomic masses. He noticed

More information

Chapter 7: Chemical Equations. Name: Date: Period:

Chapter 7: Chemical Equations. Name: Date: Period: Chapter 7: Chemical Equations Name: Date: Period: 7-1 What is a chemical reaction? Read pages 232-237 a) Explain what a chemical reaction is. b) Distinguish between evidence that suggests a chemical reaction

More information

1. When the following equation is balanced, the coefficient of Al is. Al (s) + H 2 O (l)? Al(OH) 3 (s) + H 2 (g)

1. When the following equation is balanced, the coefficient of Al is. Al (s) + H 2 O (l)? Al(OH) 3 (s) + H 2 (g) 1. When the following equation is balanced, the coefficient of Al is. Al (s) + H 2 O (l)? Al(OH) (s) + H 2 (g) A) 1 B) 2 C) 4 D) 5 E) Al (s) + H 2 O (l)? Al(OH) (s) + H 2 (g) Al (s) + H 2 O (l)? Al(OH)

More information

Observing, Writing, and Predicting Chemical Reactions Name:

Observing, Writing, and Predicting Chemical Reactions Name: Chem 110 Lab Clark College Observing, Writing, and Predicting Chemical Reactions Name: Partner s Name: Introduction As someone taking a chemistry class, you will need to understand chemical formulas, chemical

More information

11.2 Types of Chemical Reactions> Chapter 11 Chemical Reactions Types of Chemical Reactions Describing Chemical Reactions

11.2 Types of Chemical Reactions> Chapter 11 Chemical Reactions Types of Chemical Reactions Describing Chemical Reactions Chapter 11 Chemical 11.1 Describing Chemical 11.2 Types of Chemical 11.3 in Aqueous Solution 1 CHEMISTRY & YOU What happens to the wax when you burn a candle? When you burn a candle, a chemical reaction

More information

Names & Formulas for Ionic Compounds

Names & Formulas for Ionic Compounds Names & s for Ionic Compounds Determine the correct NAME for the ionic compounds listed below: Chemical Name Chemical Name NaCl Sodium chloride CaCl 2 Calcium chloride CaO Calcium oxide FeF 3 Iron (III)

More information

1. Given the balanced equations representing two chemical reactions:

1. Given the balanced equations representing two chemical reactions: Name: 1. Given the balanced equations representing two chemical reactions: Cl2 + 2NaBr 2NaCl + Br 2 2NaCl 2Na + Cl2 Which type of chemical reactions are represented by these equations? A) single replacement

More information

Chapter 7: Chemical Reactions

Chapter 7: Chemical Reactions Chapter 7 Page 1 Chapter 7: Chemical Reactions A chemical reaction: a process in which at least one new substance is formed as the result of a chemical change. A + B C + D Reactants Products Evidence that

More information

Balancing Chemical Equations

Balancing Chemical Equations Balancing Chemical Equations Academic Success Center Science Tutoring Area Science Tutoring Area Law of Conservation of Mass Matter cannot be created nor destroyed Therefore the number of each type of

More information