Explain the laws of thermodynamics: Zeroth Law, 1st Law, 2nd Law, and 3rd Law

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

Which expression allows you to determine the mechanical advantage of an inclined plane? a. height of plane / input force b. length of plane / input force c. length of plane / height of plane d. height of plane / length of plane

Which of the following is the best name for mgcl2