Question

For an exothermic reaction, what would the potential energy diagram most likely look like? a curve with a negative slope indicating that the activation energy has a negative value a curve indicating that the amount of energy absorbed during the reaction is high a curve indicating that the potential energy of the reactants is higher than that of the products a curve indicating that the potential energy of the products is higher than that of the reactants

Answer 1

Answer is: a curve indicating that the potential energy of the reactants is higher than that of the products.
Difference between potencial energies is released usually as a heat.
There are two types of reaction: endothermic reaction (chemical reaction that absorbs more energy than it releases) and exothermic reaction (chemical reaction that releases more energy than it absorbs).

Answer 2

For an exothermic reaction, the potential energy diagram is most likely to be a curve with a negative slope indicating that the activation energy has a negative value. An exothermic reaction is a reaction in which energy is given off, or, in other words, a reaction that has a ΔH < 0. On the other hand, an endothermic reaction the energy diagram will be a curve with a positive slope indicating that there is a positive value in the activation energy. In this type of reaction energy is absorbed in the reaction from the environment.