In the endothermic reaction below, how would adding heat affect the equilibrium of the system? (2 points) A + B + energy ⇄ + D Select one: a. Shift it to the left toward the reactants. b. Shift it to the right toward the products. c. Equally create more products and reactants. d. It would have no effect.

Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.

Why do different substances have diffrent properties