Question

which event occurs during an exothermic reaction? (1 point)

heat and light are released to the environment.

light is released to the environment, while heat is absorbed.

heat and light are absorbed from the environment.

heat is released to the environment, while light is absorbed.

Explanation:

An exothermic reaction is defined as a chemical reaction where energy (in the form of heat and sometimes light) is released to the surroundings. Let's analyze each option:

• Option 1: "Heat and light are released to the environment." This matches the definition of an exothermic reaction as energy (heat and light) is given out to the environment.
• Option 2: States that light is released and heat is absorbed. But in exothermic reactions, heat is released, not absorbed, so this is incorrect.
• Option 3: Says heat and light are absorbed from the environment. This is the definition of an endothermic reaction, not exothermic, so incorrect.
• Option 4: States heat is released and light is absorbed. But in exothermic reactions, if light is involved, it's also released (like in combustion reactions which are exothermic and release heat and light), so this is incorrect.

Answer:

A. Heat and light are released to the environment.