What is the role of activation energy in a chemical reaction?

Activation energy is the minimum amount of energy that the reactant must have in order for them to react. So without it, a chemical reaction will not take place

It shows that the experiment is designed properly.

So what you would do is go through and add 3 teaspoons(tsp) 6 times because of the 6 tablespoons(tbsp). which will give you an answer of 18. another way is to multiply 3x6=18.