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PS Chemistry 2
| Term | Definition |
|---|---|
| Physical Change | Change affecting the form of a chemical substance, but not its chemical composition. Usually reversible by "ordinary" means. |
| Chemical Change | A usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition |
| Single Replacement | A + BC --> AC + B |
| Double Replacement | AB + CD --> AD + CB |
| Decomposition | AB --> A + B |
| Synthesis | A + B --> AB |
| Catalyst | A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change. |
| Inhibitor | A substance that slows down the rate of a chemical reaction. |
| Concentration | The amount of solute divided by the total amount of mixture. |
| Activation Energy | The minimum amount of energy needed to start a chemical reaction. |
| Endothermic | A reaction that absorbs thermal energy from the surroundings. |
| Exothermic | A reaction that adds thermal energy to the surroundings |
| Reactants | The substances that exist before a chemical reaction. |
| Products | The substances that exist after a chemical reaction. |
| Chemical Reaction | A process that produces a chemical change. |
| Enzyme | A catalyst involved in living organisms. |
| Protease | An enzyme that breaks down proteins. |
Created by:
MrGross
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