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Chemistry Voc Quiz
for use at BYOD training
| Question | Answer |
|---|---|
| A liquid that resists change in pH when an acid or base is added. | buffer |
| A substance that lowers the activation energy of a reaction or speeds it up without being consumed by the reaction. | catalyst |
| The minimum quantity of radioactive material needed to cause a nuclear chain reaction. | critical mass |
| When a solvent is added to a solution making it less concentrated. | dilution |
| Using electricity to break the bonds in a compound to break it apart. | electrolysis |
| A process that absorbs heat. | endothermic |
| A protein that acts as a catalyst in a biochemical reaction. | enzyme |
| A process that gives off heat. | exothermic |
| Occurs when the atomic nucleus is unstable and breaks apart releasing energy or radiation. | radioactivity |
| Making a larger molecule from two or more atoms or smaller molecules. | synthesis |