| A | B |
|---|
| reactant | The materials you have at the beginning of a chemical reaction. |
| replacement | When one element replaces another in a compound or when two elements in different compounds trade places, the process is called __________. |
| chemical equation | A shorter easier way to show chemical reactions |
| product | Materials that you have as a result of a chemical reaction. |
| conservation of mass | The amound of matter involved in a chemical reactiion does not change. The total mass of the reactants must equal the total mass of the products. |
| synthesis | When two or more substances combine to make a more complex substance. |
| subscript | Small numbers showing the ratio of atoms of different elements in a formula. |
| coefficient | A number placed in front of a chemical formula in an equation. |
| decomposition | A reaction that breaks down compounds into simpler products. |
