Critical Thinking Activities - Chapter 2 Answers

  1. Heartburn is caused by stomach acid. Sodium bicarbonate has an alkaline pH and will behave as a buffer (29).

  2. Ten times. (29)

  3. Oil, they are both non-polar: 35.

  4. Phospholipids have affinity at one end to the non-polar grease and the other end to polar water: (36-37).

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