Which of the following has potential energy? (A child swinging on a play set a book on a table a ball rolling down a hill a car driving down the road)

A child Swinging on a play

Explanation:

Because The potential Energy is about doing something The Defference about Kinetic Energy are A Things That not move before you moved it

if the concentration of products is decreased, the equilibrium will shift toward the products). add an inert gas (one that is not involved in the reaction) to the constant-volume reaction mixture: this will increase the total pressure of the system, but will have no effect on the equilibrium condition.

explanation:

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.