| A | B |
|---|
| Acid | A substance that tastes sour, reacts with metals and carbonates, and turns blue litmus paper red. |
| Indicator | A compound that changes color when in contact with an acid or a base. |
| Base | A substance that tastes bitter, feels slippery, and turns red litmus paper blue. |
| hydrogen ion | An atom of hydrogen that has lost its electron. |
| hydroxide ion | Poly-atomic ion made of oxygen and hydrogen combined |
| pH scale | Ranges from 0-14 and measures the amount of hydrogen ions in a solution |
| acid rain | Rain water containing pollutants which turn to acids. |
| neutralization | A reaction between an acid and a base which results in a mixture which is not as basic nor as acidic as the individual starting solutions. |
| salt | Made from the positive ion of a base and the negative ion of an acid. |
