Which type of reaction is shown in this energy diagram?

Energy

Products

Activation

Energy

Reactants

Time

O

A. Endothermic, because energy is absorbed from the surroundings

O

B. Exothermic, because energy is absorbed from the surroundings

O

C. Exothermic, because energy is released to the surroundings

D. Endothermic, because energy is released to the surroundings

The correct option is A. Endothermic, because energy is absorbed from the surroundings

Explanation:

A decomposition reaction can be described as a type of reaction in which a product breaks down into the reactants.

As energy is required for the product to break down, we can infer that the reaction is endothermic. This is because in an endothermic reaction, energy is taken from the environment to break down a compound or product.