Question

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

○ light or heat are released into the environment.

○ heat is released into the environment, while light is absorbed.

○ light is released into the environment, while heat is absorbed.

○ light and heat are absorbed from the environment.

Explanation:

An exothermic reaction is defined as a chemical reaction that releases energy, typically in the form of heat or light (or both) into the surroundings. Let's analyze each option:

• Option 1: "Light or heat are released into the environment." This matches the definition of an exothermic reaction, as energy (heat/light) is released.
• Option 2: "Heat is released into the environment, while light is absorbed." Exothermic reactions release energy, not absorb light, so this is incorrect.
• Option 3: "Light is released into the environment, while heat is absorbed." Exothermic reactions release heat (or light/heat), not absorb heat, so this is incorrect.
• Option 4: "Light and heat are absorbed from the environment." Reactions that absorb energy (heat/light) from the surroundings are endothermic, not exothermic, so this is incorrect.

Answer:

A. Light or heat are released into the environment.