The graph below shows the energy associated with a
chemical reaction. The activation energy decreases
once a certain type of molecule is added
What type of molecule causes the activation energy to
decrease as shown in the graph?
![The graph below shows the energy associated with a chemical reaction The activation energy decreases once a certain type of molecule is added What type of molec class=](https://us-static.z-dn.net/files/d74/2de7dbf3d0bdc400f2df8ca6753dcbf3.png)