2.4 Energy and Rates of Chemical Reactions

Question 1

a chemical reaction in which heat is released to the surroundings

Answer 1

exothermic reactions

Question 2

means to go out

Answer 2

exo

Question 3

a chemical reaction that requires heat

Answer 3

endothermic reaction

Question 4

means to go in

Answer 4

endo

Question 5

the law that states that energy can not be created or destroyed but can be changed from one form to another

Answer 5

law of conservation of energy

Question 6

the speed at which new particles form

Answer 6

rate of reaction

Question 7

the minimum amount of energy required to start a chemical reaction

Answer 7

activation energy

Question 8

a measure of the amount of one substance dissolved into another substance

Answer 8

concentration

Question 9

the amount of exposed surface of a substance

Answer 9

surface area

Question 10

a substance that slows down or stops a chemical reaction

Answer 10

inhibitor

Question 11

a substance that changes the rate of a chemical reaction without being used up or changed very much

Answer 11

catalyst