Question detail

For Reaction profiles, which answer best supports this AQA GCSE Chemistry Unit 4.5 objective: Label reactants and products on a reaction profile?

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. reaction profile: correct Unit 4.5 answer for Reaction profiles
  2. B. Incorrect: confuses reaction profile with a nearby Energy changes idea
  3. C. Incorrect: gives a general chemistry statement without linking to Reaction profiles
  4. D. Incorrect: reverses the energy-change relationship in Exothermic and endothermic reactions

Answer

The correct option is reaction profile: correct Unit 4.5 answer for Reaction profiles.

Explanation

The correct option is reaction profile: correct Unit 4.5 answer for Reaction profiles. It directly supports the approved learning objective to label reactants and products on a reaction profile. This keeps the answer anchored to Reaction profiles 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

Mislabeling Components

Students often label the reactants and products incorrectly on a reaction profile, confusing their positions.

To fix this, remember that reactants are always on the left side of the reaction profile and products are on the right side. Practice drawing and labeling reaction profiles to reinforce this concept.

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understanding MCQ 1: products on a reaction profile. | Exothermic… | ExamCompanion