Fact 1: All chemical reactions require activation energy to get started.

Fact 2: Catalysts lower the activation energy for reactions.

Given the two facts above, answer the question "What do catalysts do?" with the following options: 
- metabolic reaction
 - breathe
 - get chemical reactions started
 - Slowing the transfer of heat
 - A compound that donates proton
 - fertilize eggs
 - have a positive impact on the environment
 - inhibit chemical reactions


 

   get chemical reactions started      