| A | B |
| water (#1) | H20 |
| hydrogen bonding | weak bonding between Hydrogen and Oxygen |
| cohesion | molecules have a strong attraction |
| adhesion | stick to a surface |
| surface tension | surface acts as an elastic sheet |
| hard water | water with dissolved ions in it |
| sodium ions | replace calcium ions during water softening |
| water (#2) | universal solvent |
| water molecules are closer together as liquid | TRUE |
| water is a liquid at room temperature while other similar chemicals are gases | TRUE |