| A | B |
|---|
| In a an exothermic reaction, the temperature... | goes up. |
| In an exothermic reaction, thermal energy... | is released. |
| In an endothermic reaction, the temperature... | goes down. |
| In an endothermic reaction, thermal energy.. | is absorbed. |
| Synthesis reaction | A reaction in which simple molecules combine to form more complex molecules. |
| Decomposition reaction | A reaction in which complex molecules are broken down into simple molecues. |
| Replacement reaction | A reaction in which two or more elements switch places. |
| Reactants | The chemicals you have at the beginning of a reaction. |
| Reactants are on the ______ side of a chemcial equation | left |
| Products | The materials you have at the end of a chemical reaction. |
| Products are on the _______ side of a chemical equation. | right |
| Catalyst | Any material that speeds up a chemical reaction. |
| Inhibitor | Any material that slows down a chemcial reaction. |
| Subscripts show the number of _______ in a molecule | atoms of each element |
| Coefficients show the number of atoms or _______ that take part in a reaction. | Molecules |
| Concentration | The amount of one material present in a given amout of another material. |
| Polar | A covalent bond in which electrons are shared UNequally. |
| Non-polar | A covalent bond in which electrons are shared equally |
| Conservation of Mass | Matter cannot be created or destroyed during a chemical reaction. |
| Chemical Reaction | Process during which chemical bonds are created or destroyed. |
