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Science
6.3
| Question | Answer |
|---|---|
| Minimum amount of energy needed to start a chemical equation | activation energy |
| All chemical reactions require activation energy. True or False? | True |
| Four factors that affect the rate of a chemical reaction? | surface area, concentration, temperature, catalysts (and inhibitors) |
| What is the amount of area that is exposed to the chemicals in order to allow them to react? | surface area |
| If there is more surface area, does the reaction speed up or slow down? | speeds up |
| What is the amount of stuff in a certain volume? | concentration |
| If there is a higher concentration of the substance, does the reaction happen faster or slower? | faster (remember the alka seltzer tablets?) |
| If the temperature is higher, does the reaction happen faster or slower? | faster |
| What is a substance that helps a reaction take place but it is not a part of the reaction? | Catalyst |
| How does a catalyst work? | It lowers the activation energy needed. |
| What is a substance that has the opposite effect from a catalyst? | inhibitor |
| List 3 ways you could increase the rate of a chemical reaction | Increase the temperature, increase the concentration, add a catalyst, increase the surface area of the reactant(s) |
Created by:
mtnbrook
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