Question detail

Which example applies exothermic reaction accurately within Exothermic and endothermic reactions?

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Exothermic and endothermic reactions

Question

  1. A. exothermic reaction: correct Unit 4.5 answer for Energy transfer during exothermic and endothermic reactions
  2. B. Incorrect example: uses a device, reaction, or diagram not linked to exothermic reaction
  3. C. Incorrect example: gives evidence without explaining the energy transfer
  4. D. Incorrect example: describes a broad practical skill instead of the objective

Answer

The correct option is exothermic reaction: correct Unit 4.5 answer for Energy transfer during exothermic and endothermic reactions.

Explanation

The correct option is exothermic reaction: correct Unit 4.5 answer for Energy transfer during exothermic and endothermic reactions. It directly supports the approved learning objective to describe everyday uses of exothermic reactions, including self-heating cans and hand warmers. This diagram version keeps the answer anchored to Energy transfer during exothermic and endothermic reactions within Exothermic and endothermic reactions, and avoids mixing energy transfer, reaction profiles, activation energy, chemical cells, fuel cells, exothermic reactions and endothermic reactions unless the objective names them.

Common mistake

Misunderstanding Everyday Uses

Students often confuse the uses of exothermic reactions, thinking that self-heating cans and hand warmers are examples of endothermic reactions.

Remember that exothermic reactions release energy to the surroundings, which is why hand warmers and self-heating cans generate heat.

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