The activation energy of a reaction going on its own is 20 kJ. If the reaction was treated with a catalyst, which would most likely represent the amount of energy needed to start a reaction?

9) a & b

10) true.

11) false.

12) false.

13) true.

14) false.

15) true.

16) true.

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answer; a group made up of people from difference cultures;

answer; graduated cylinder;