CHAPTER 3 REVIEW

1. CHAPTER 3 REVIEW

2. 3.1 – CARBON COMPOUNDS

3. What is the difference between organic and inorganic compounds? • Organic molecules have lots of C in C-H bonds • Inorganic molecules have lots of C in C-H bonds. • Organic molecules are found only in nonliving things. • There is no difference.

4. HOW MANY VALENCE ELECTRONS IN A CARBON ATOM? • 1 • 2 • 3 • 4

5. How many covalent bonds can carbon form? • 2 • 4 • 6 • 8 Why?

6. How many bonds will oxygen form to be stable? • 2 • 4 • 6 • 8 Why?

7. How many bonds will H form to be stable? • 1 • 2 • 3 • 4 Why?

8. How many bonds will N form to be stable? • 1 • 3 • 5 • 7 Why?

9. The structural formula is showing a: • Straight chain • Spiral chain • Branched chain • Ring

10. The structural formula is showing a: • Straight chain • Spiral chain • Branched chain • Ring

11. The structural formula is showing a: • Straight chain • Spiral chain • Branched chain • Ring

12. The structural formula is showing a: • Straight chain • Spiral chain • Branched chain • Ring

13. The structural formula is showing a: • Straight chain • Branched chain • Highly branched chain • Ring

14. How many carbon atoms are in the structural formula shown? • 1 • 6 • 7 • 8

15. How many hydrogen atoms are in the structural formula shown? • 3 • 5 • 8 • 12

16. How many hydrogen atoms are in the structural formula shown? These carbons are not “full” so H atoms are implied!

17. In the structural formula, why is the part outlined in red written as -OCH3 and not -OH3C? • H only have 1 valence electron and can only bond with one other thing • H must always go on the outsides of a molecule • It shows the correct connectivity of the atoms • All of the above

18. Identify the functional group in the red box. • Hydroxyl • Carboxyl • Amino • Phosphate

19. Identify the functional group in the red box. • Hydroxyl • Carboxyl • Amino • Phosphate

20. Identify the functional group in the red box. • Hydroxyl • Carboxyl • Amino • Phosphate

21. Identify the functional group in the red box. • Hydroxyl • Carboxyl • Amino • Phosphate

22. Smaller subunits that make up larger molecules are called • Monomers • Micromers • Unimers • Dimers

23. Large molecules are called • Monomers • Polymers • Macromolecules • Both B and C

24. Reactions that use water to break polymers apart are called __________ reactions. • Condensation • Hydrolysis • Dehydration synthesis • Endothermic

25. Monomer + monomer + monomerpolymer + water is an example of a(n) __________ reaction. • Condensation • Hydrolysis • Exothermic • Exergonic

26. What is another name for a condensation reaction? • Hydrolysis • Exothermic • Rehydration synthesis • Dehydration synthesis

27. A dimer is made up of _____ monomers. • 2 • 20 • 200 • many

28. When monomers join, what secondary product is always made? • Oxygen • Carbon dioxide • Hydrogen • Water

29. Hydrolysis reactions are • Endergonic • Energy absorbing • Exergonic • None of the above

30. Condensation reactions are • Exergonic • Endergonic • Energy absorbing • Both B and C

31. What type of reaction is shown below? • Condensation • Hydrolysis • Exergonic • None of the above

32. What type of reaction is shown below? energy ATP + H2OADP + PO4- + • Condensation • Hydrolysis • Rehydration • Dehydration synthesis

33. What kind of reaction is shown below? • Condensation • Hydrolysis • Hydration • Hydrocarbonation