| Term | Definition |
| Solubility | the ability to dissolve |
| Solution | mixture in which one substance is evenly mixed with another substance |
| Solvent | the substance that does the dissolving (water) |
| Solute | the substance that gets dissolved |
| Acids | taste sour, conduct electricity, recognized by an H+ ions |
| Examples of Acids | oranges, lemons, vinegar |
| Bases | taste bitter, slippery, don't conduct electricity, recognized by an OH- ions |
| Examples of Bases | soap, milk, milk of magnesia |
| Litmus Paper | a type of indicator that helps to identify acids and bases |
| Acids | turn blue litmus red |
| Bases | turn red litmus blue |
| Neutralization | occurs when acids and bases react to form salt and water |
| pH Scale | measures the concentration of Hydrogen ions in solution, ranges from 0-14 |
| acidic substances | 0-6 on the pH scale, 1 is more of this/stronger one of these than 6 |
| neutral | 7 on the pH scale, equal number of H+ and OH- ions, water is this |
| basic substances | 8-14 on the pH scale, 14 is more of this/ stronger one of these than 8 |