| A | B |
|---|
| substance | matter with a fixed composition whose identity can be changed by chemical processes but not by ordinary physical processes |
| heterogeneous mixture | type of mixture where the substances are not evenly mixed |
| homogeneous mixture | type of mixture where two or more substances are evenly mixed on a molecular level but are not bonded together |
| solution | homogeneous mixture whose elements and/or compounds are evenly mixed at the molecular level but are not bonded together |
| solute | substance that dissolves and seems to disappear into another substance |
| solvent | substance that dissolves the solute |
| precipitate | solid that comes back out of its solution because of a chemical reaction or physical change |
| aqueous | solution in which water is the solvent |
| solubility | measure of how much solute can be dissolved in a certain amount of solvent |
| saturated | describes a solution that holds the total amount of solute that it can hold under given conditions |
| concentration | describes how much solute is present in a solution compared to the amount of solvent |
| acid | substance that releases H+ ions and produces hydronium ions when dissolved in water |
| hydronium ion | hydrogen ion combines with water molecule to form a hydronium ion H3O+ |
| base | substance that accepts H+ ions and produces hydroxide ions when dissolved in water |
| pH | measure of who acidic or basic a solution is, ranging in scale from 0 to 14 |
| indicator | compound that changes color at different pH values when it reacts with acidic or basic solutions |
| neutralization | reaction in which an acid reacts with a base and forms water and a salt |
