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Chapter 2 Exercises and Comments |
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| Sect. | Comments | Practice Exercises |
| 2.1 | Write formulas for compounds. You don't have to memorize the names of elements at this point. | 8 |
| 2.2 | Know the characteristics of protons, neutrons, and electrons. | 10 |
| 2.3 | Determine the number of subatomic particles in isotopes and write symbols for isotopes. | 14, 16, 18 |
| 2.4 | Use atomic weights to calculate molecular weights. Skip Examples (E) 2.3 and Learning Check (LC) 2.3. | 24, 30ab |
| 2.5 | Skip E 2.5 and Learning Check (LC) 2.5. | |
| 2.6 | Memorize Avogadro's Number. Interconvert moles, atoms and grams. Skip E 2.6 and LC 2.6. | 44, 46 |
| 2.7 | Interconvert moles, molecules and grams. Skip E 2.10 and LC 2.9. | 52 |