Chapter 2 - The Chemistry of Biology - Critical Thinking Questions - Bloom's Levels 3, 4, and 5: Apply, Analyze, and Evaluate - Page 53: 7

Simple models of the molecules are appended below: Polar molecule consists of partial positive and partial negative ends, due to which attraction is developed between the atoms of both ends, which is called polarity. Water (H2O) is a polar molecule, because it has a partial positive H atom and partial negative O atom, due to which Hydrogen bonding is induced.

See answer.