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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 |