Chapter 3 Self-Quiz, page 127 1. (c) 2. (b) 3. (b) 4. (a) 5. (a) 6. (d) 7. (b) 8. (d) 9. (a) 10. False. Fossil fuels and ore deposits are examples of non-renewable resources. 11. False. The bonding in nitrogen trifluoride, NF3(g), would be polar covalent. 12. True 13. False. Of the molecules CO2, SiH4, and PF3, the molecule with asymmetrically distributed bonds is PF3. 14. True 15. False. London dispersion forces exist between all molecules. 16. True 17. True 18. True 19. False. Water’s relatively high specific heat capacity results in a relatively small temperature change for a given amount of thermal energy absorbed. 20. False. Scientists increased the strength of PLA plastic by adding kenaf fibres to it.

Copyright © 2011 Nelson Education Ltd. Chapter 3: Molecular Compounds and Intermolecular Forces 3-1

Chapter 3 Self-Quiz, page 127

2. (b). 3. (b). 4. (a). 5. (a). 6. (d). 7. (b). 8. (d). 9. (a). 10. False. Fossil fuels and ore deposits are examples of non-renewable resources. 11. False. The bonding in ...

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