As the cart moves to the positions along the track, it has varying levels of kinetic and potential energy. However, throughout the entire ride, the SUM TOTAL of potential energy PLUS kinetic energy is always equal. Explain why this is true.

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.