| A | B |
| heterogeneous mixture | a type of mixture where the substances are not evenly mixed |
| substance | matter that has the same fixed composition and properties |
| solution | another name for a homogenous mixture |
| solute | the substance that dissolves or seems to disappear in a solution |
| solvent | the substance that dissolves the solute |
| precipitate | a solid that comes back out of solution because of a chemical reaction |
| proton | a positively charged particle found in the nucleus of an atom |
| aqueous | a solution in which water is the solvent |
| solubility | the amount of a solute that can dissolve in a certain amount of solvent |
| saturated | a solution that is holding as much dissolved solute as possible |
| unsaturated | a solution that is holding less dissolved solute than is possible |
| supersaturated | a solution that is holding more dissolved solute than is normally possible |
| concentration | a measure of how much solute is in solution |
| dilute | having a low concentration of solute |
| covalent bond | a bond between two or more elements that occurs when electrons are shared |
| ionic bond | a bond between two or more elements that occurs when electrons are lost or gained |
| nonpolar bond | a covalent bond that occurs when electrons are distributed evenly |
| polar bond | a covalent bond that occurs when electrons are distributed unevenly causing one end of the molecule to be positively charged and the other end to be negatively charged |
| homogeneous mixture | a type of mixture where two or more substances are evenly mixed |