Chapter 1 - 3 Homework Problems Chapter 1 Learning Goal Text Homework 1.1 Units of Measure pp. 15 – 18 Q #3 1.2 Scientific Notation pp. 18 – 21 Q #5 1.3 Measured Numbers and Significant Figures pp. 21 – 23 Q #9, 11, 13, 15 1.4 Significant Figures in Calculations pp. 23 – 27 Q #19, 21, 23, 25 1.5 Prefixes and Equalities pp. 27 – 30 Q #31, 33, 35 1.6 Writing Conversion Factors pp. 31 – 35 Q #39, 41 1.7 Problem Solving pp. 35 – 39 Q #47, 49, 51 1.8 Density pp. 40 – 44 Q #53, 55 Extra Problems pp. 48 – 49 Q #67, 69, 77, 81, 91 Chapter 2 Learning Goal Text Homework 2.1 Energy pp. 52 – 56 Q #1, 3, 5 2.2 Energy and Nutrition pp. 56 – 58 Q #7, 9 2.3 Temperature Conversions pp. 59 – 63 Q #13 2.4 Specific Heat pp. 63 – 65 Q #19, 21 2.5 States of Matter pp. 65 – 67 Q #25 2.6 Changes of State pp. 67 – 74 Q #29, 31, 35 Extra Problems pp. 77 – 78 Q #53, 71Chapter 3 Learning Goal Text Homework 3.1 Classification of Matter pp. 83 – 86 Q #1, 3, 5 3.2 Elements and Symbols pp. 86 – 89 Q #7, 9 3.3 The Periodic Table pp. 89 – 94 Q #13, 15, 17, 19 3.4 The Atom pp. 95 – 98 Q #21, 23, 25 3.5 Atomic Number and Mass Number pp. 98 – 100 Q #35 3.6 Isotopes and Atomic Mass pp. 101 – 103 Q #37, 39 3.7 Electron Energy Levels pp. 104 – 106, Handout See Handout 3.8 Periodic Trends pp. 107 – 111 Q #55, 59, 61, 65, 67, 69, 71 Extra Problems pp. 115 – 116 Q #87, 93, 99, 105,