Chapter 2 The Chemistry Of Life Worksheet Answer Key Chapter 2 The Chemistry Of Life Worksheet Answer Key ANSWER KEY 1. a 2. b 3. c 4. c 5. a 6. b 7. c 8. Polarity in a water molecule is caused by an uneven distribution of electrons between the oxygen and hydrogen atoms. Related documents. Chemistry eDay.1 Write definitions for vocabulary words in Chapter. HW Answers - Element Puns Worksheet.