1. A mixture that contains more than one type of matter and is the same throughout is a mixture.

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1 2nd Semester Benchmark Review Completion Complete each statement. 1. A mixture that contains more than one type of matter and is the same throughout is a mixture. 2. A mixture in which different samples are not necessarily made up of exactly the same proportions of matter is a mixture. 3. have a definite shape and volume, while liquids only have a definite volume. 4. The transformation of a liquid to a gas that serves as a cooling process is called. 5. The (2 words) of water, where liquid water turns to solid ice, is 32 F or 0 C. 6. The (two words) of an element is the total number of protons and neutrons in the nucleus. 7. Elements with similar properties, listed in a single column on the periodic table, form what is called a. Matching Match the following terms with the correct definition. There is one extra term which will not match any a. element b. atom c. mass d. compound e. matter f. molecule 8. The smallest particle of a compound that retains the properties of the compound 9. Substances made up of two or more elements that cannot be separated by physical means 10. A substance that contains only one kind of matter 11. Rutherford discovered that it is made up of mostly empty space 12. Anything that has mass and takes up space Match each part of the atom with its identity from the list below.

2 13. energy level 14. neutron 15. proton 16. electrons 17. nucleus For the following element, match the letter with the type of information given. 18. name of element 19. atomic mass 20. symbol 21. atomic number a. valence electrons b. energy levels c. ions d. oxidation number e. electronegativity f. polymers 22. The location of electrons around the nucleus of an atom 23. The electrons involved in chemical bonding 24. The number of electrons which are lost, gained, or shared when bonding occurs 25. Atoms that are positively or negatively charged

3 a. covalent bond b. ionic bond c. valence electrons d. metal bond e. octet rule f. polymers 26. Most atoms need eight valence electrons to be stable 27. Symbolized by dots in a dot diagram 28. A bond between atoms in which electrons are shared 29. A bond between atoms in which electrons are lost or gained a. binary compounds b. polyatomic ions c. diatomic molecules d. polymers e. monoatomic ions f. ionic compounds 30. Covalently bonded atoms of the same type like O 2, N 2, Cl Ions which contain only one type of atom, like Na + or Cl Ions which contain more than one type of atom like CO 3 2-, SO 4 2-, NH Covalent molecules that consist of only two elements a. physical change b. chemical change c. law of conservation of mass d. carbon chains e. reactants f. products 34. Melting ice is an example of this 35. The total mass of the products of the reaction is equal to the total mass of the reactants 36. Occurs when bonds are broken and reformed to make a new substance or substances 37. Substances that change in a chemical reaction 38. Substances that are formed as a result of a chemical reaction

4 a. solvent b. solute c. alloy d. equilibrium e. suspension f. solution 39. The component of a solution that dissolves the solute and is present in the greatest amount 40. A mixture of two or more substances that is homogeneous at the molecular level; consisting of a solute and a solvent 41. Solution of two or more metals 42. A type of mixture that settles upon standing and has particles larger than 1,000 nm in diameter a. acid b. base c. acid precipitation d. ph e. sulfuric acid f. neutralization 43. A chemical which contributes hydrogen ions (H + ) to a solution 44. A chemical which contributes hydroxyl ions (OH - ) to a solution 45. The exact concentration of H + ions and OH - ions in a solution 46. Rain, snow, sleet, or fog that has a ph lower than The number one component of acid rain Match each item to the correct statement below. a. synthesis reaction d. single-displacement reaction b. decomposition reaction e. double-displacement reaction c. combustion reaction 48. 2NH 3 N 2 + 3H NaCl + H 2 SO Fe + S FeS Na 2 SO 4 + 2HCl 51. 2Li + 2H 2 O 2LiOH + H 2 Multiple Choice Identify the choice that best completes the statement or answers the question. 52. When nickel combines with fluorine to form nickel (III) fluoride, the charge of the nickel ion is a. Ni 1+. c. Ni 3+. b. Ni 2+. d. Ni 4+.

5 53. An ionic compound made of copper (Cu 2+ ) and oxygen would be named a. copper oxygen. c. dicopper oxide. b. copper oxide. d. copper(ii) oxide. 54. The covalent compound N 2 O 5 would be named a. nitrogen oxide. c. nitrogen pentoxide. b. dinitrogen oxide. d. dinitrogen pentoxide. 55. The chemical formula for an ionic compound of potassium and oxygen is a. KO. c. K 2 O 2. b. K 2 O. d. KO The name dinitrogen tetroxide tells you that this compound contains a. 2 N atoms and 2 O atoms. c. 2 N atoms and 4 O atoms. b. 4 N atoms and 2 O atoms. d. 4 N atoms and 4 O atoms. 57. A solution that is mildly acidic would have a ph of approximately a. 2. c. 6. b. 4. d The label on a bottle indicates that the substance inside has a ph of 13. This tells you that the substance is a. neutral. c. mildly basic. b. strongly acidic. d. strongly basic. 59. A base forms which ions in solution? a. oxygen c. hydronium b. hydroxide d. hydrogen 60. Which phrase is not true about strong acids? a. conduct electricity well c. turn red litmus paper blue b. ionize completely in water d. form H 3 O + ions in solution 61. Which phrase is not true about strong bases? a. are metal hydroxides c. dissociate in water b. have ph ranges from 1 to 7 d. conduct electricity well 62. At the equivalence point of a strong acid strong base titration the ph is a. 0. c. 10. b. 7. d Which household substance is a base? a. vitamin C c. lemon juice b. vinegar d. None of the above 64. According to, if you decrease the volume of a container of gas and hold the temperature constant, the pressure of the gas will increase. a. Bernoulli s principle c. Charles s law b. Boyle s law d. Archemedes principle 65. According to, the volume of a gas increases with increasing temperature, as long as pressure does not change. a. Bernoulli s principle c. Charles s law b. Boyle s law d. Archimedes principle

6 66. As a sample of matter is heated, its particles. a. are unaffected c. move more slowly b. move more quickly d. stop moving 67. The most common state of matter in the universe is. a. gas c. plasma b. liquid d. solid 68. As the volume of a gas decreases, the pressure of the gas will if the temperature remains the same. a. decrease c. remain the same b. increase d. contract Short Answer 69. Name the compound formed by combining K and Cl. 70. For the following antacid reaction, list the reactants and the products. 2HCl + CaCO 3 CaCl 2 + CO 2 + H 2 O 71. What radioactive technique is used to determine the age of fossils? 72. List one advantage and one disadvantage of using nuclear power plants to produce electricity.

7 73. Based on Graph 7-1, what is the half-life of sodium-25? 74. For the nucleus shown below, do the following: A. Name the element. B. Give the mass number. C. Show the isotope notation. 75. Use the periodic table to answer the following question. A sodium atom will react with one chlorine atom to form sodium chloride, NaCl. Name two other elements that are likely to react with chlorine in a similar manner.

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