Energy Changes in a Reaction

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https://www.youtube.com/watch?v=qzwqUXSOp1Q

What is the activation energy? *

1 point

the minimum energy required for particles to activate

the minimum energy required for particles to move

the minimum energy required for particles to react

What kind of reaction does this reaction energy profile diagram show? *

1 point

exothermic

endothermic

What kind of reaction is shown below by this energy level diagram? *

1 point

exothermic

endothermic

exocentric

isothermic

What kind of reaction does this reaction energy profile diagram show? *

1 point

exothermic

endothermic

What effect does a catalyst have on the activation energy? *

1 point

increase it

decreases it

has no effect

Is the activation energy bigger in a endothermic or exothermic reaction? *

1 point

endothermic

exothermic

neither

In an exothermic reaction, do the reactants have more or less energy than the products *

1 point

less

the same

What happens to the temperature in a endothermic reaction? *

1 point

decreases

increases

stays the same

In an endothermic reaction, do the reactants have more or less energy than the products *

1 point

less

the same

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