Question

What does not increase the rate of a reaction?
-increasing=concentration
-decreasing=temperature
-increasing=surface area
-adding effective catalyst

Answer 1

Basically, what makes a reaction "go" is the reactant molecules colliding, right?

Answer 2

then it would be perhaps, increasing=surface area?

Answer 3

the question is what does NOT increase rate.

which of those things will REDUCE the number of molecules that can collide?

Answer 4

actually concentration

Answer 5

increasing concentration means MORE molecules, not LESS, so it's not increasing concentration

Answer 6

adding an effective catalyst.

Answer 7

catalysts make reactions run faster, that's the simple definition of catalysts.

Answer 8

so adding a catalyst won't make a reaction run slower

Answer 9

if you decrease the temperature, you slow the molecules down. therefore, the molecules collide less. which in turn, slows the reaction.