C2 ENERGY IN CHEMICAL REACTIONS Flashcards
1
Q
Heat of reaction
A
is the energy absorbed or released in a chemical reaction.
2
Q
exothermic reaction
A
are reactions that release energy.
3
Q
endothermic reaction
A
reactions that absorb energy
4
Q
reversible reaction
A
is a reaction where products can be converted back into reactants.
5
Q
activation energy
A
is the minimum energy needed for a reaction to take place.
6
Q
activated complex
A
is the unstable transition state from reactants to products in a chemical reaction.
7
Q
positive catalyst
A
is a substance that increases the rate of a chemical reaction without itself undergoing a permanent change
