During combustion, which of the following typically accompanies the rapid oxidation of a substance?

• A. Decrease in temperature
• B. Formation of precipitate
• C. Release of heat and light
• D. Absorption of energy

Answer: (C)

Verified step by step guidance

1. Understand that combustion is a chemical reaction where a substance rapidly reacts with oxygen, typically producing heat and light.
2. Recall that during combustion, the oxidation process is exothermic, meaning it releases energy rather than absorbing it.
3. Recognize that a decrease in temperature is unlikely because exothermic reactions increase the temperature of the surroundings.
4. Note that formation of a precipitate is not typical in combustion since the products are usually gases like CO\_2 and H\_2O.
5. Conclude that the rapid oxidation in combustion is accompanied by the release of heat and light, which is characteristic of this reaction type.