Question

Which statement below best describes how the catalyst affected the reaction shown in this diagram?
1) The catalyst decreased the activation energy of the reactants.

2) The catalyst increased the activation energy of the reactants.

3) The catalyst increased activation energy of the products.

4) The catalyst decreased activation energy of the products.

Answer 1

1) The catalyst decreased the activation energy of the reactants.

A reaction can only occur if the barrier of energy, called activation energy is exceeded. A catalyst lowers this barrier by providing alternative reaction path ways or bringing the reactants together.

Answer 2

look for properties of catalyst first.then you will know how to answered it :) better understand the basic first ;)