Question

Activation energy is

the heat released in a reaction

the energy barrier between reactants and products

the energy given off when reactants collide***

generally very high for a reaction that takes place rapidly

Answer 1

I meant to mark B as my answer sorry

Answer 2

B is correct

Answer 3

1 b
2 c
3 c
4 c
5 d
6 c
7 b
8 c
9 b

Answer 4

all of these were correct except 3, 3 was A: More H2CO3 is produced

Answer 5

3 is a but everything else is right

Answer 6

1 b
2 c
3 a
4 c
5 d
6 c
7 b
8 c
9 b

100%