Physical science chapter 19

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What are the five things that can speed up a chemical reaction
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Terms in this set (18)
What are the five things that can speed up a chemical reaction
Shrink,increase,speed up,break up clumps into individual parties,use catalyst
Why does food cook faster at a high temperature
Because it brings about thermal energy which causes a chemical change
What is the term used to describe the energy needed to get a reaction started?
Chemical energy
What are catalysts?
substances that speed up chemical reactions
Compare the amount of activation energy required for a catalyzed versus and uncatalyzed reaction?
The
Catalysts that slow reactions are called
inhibitors
If a chemical reaction is occurring what is something you can do it to slow the reaction other than a inhibitor
A chemical reaction is described by a chemical equation
Describe a reaction in chemical equilibrium
Chemical equilibrium is the state in the forward reaction rate are equal
The special kind of catalyst that lives in our body to speed up biochemical reactions
Enzyme
In the equation 2H'2O->2H'2+O2 what is the product?
2H2O
When sodium and chlorine combine to form salt salt would be what?A reactantsWhat does the arrow mean in the chemical equationyields or producesWhat happens to atoms in a chemical reactionThey become productsWhat are six signs of a chemical reaction1.changes in color 2.formation or precipitate 3.formation of gas 4. Odor change 5. Temperature change 6.formation of bubblesWhat is endothermic?absorption of heatWhat is exothermic?energy is releasedWhat is combustion?the process of burning somethingWhat does decomposition mean?