| A | B |
| base | contains a lower concentration of H+ ions than pure water (OH-) |
| acid | contains more H+ ions than water (H+) |
| buffer | a weak acid or base can react with a strong acid or base to help prevent sudden changes in pH |
| solute | a substance that dissolves in a solvent |
| solvent | a substance that dissolves a solute |
| covalent bond | a bond that shares electrons |
| hydrogen bonds | a weak bond that that loves to share an electron |
| neutral | a substance that has equal amounts of OH- and H+ ions (pH7) |
| molecule | the smallest unit of most compounds |
| adhesion | the attraction between molecules of different substances |
| cohesion | the attraction between molecules of the same substance |
| pH scale | the scale used to measure how acidic or basic a solution is |
| solution | the smallest unit of most compounds |
| polarity | uneven distributions of electrons between oxygen and hydrogen |