Question detail
A student is revising Reaction profiles. Which correction best fixes a mistake about 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
- A. reaction profile: correct Unit 4.5 answer for Reaction profiles in a reaction-profile diagram
- B. Incorrect correction: repeats the misconception in a reaction-profile diagram
- C. Incorrect correction: changes the topic to a different Chemistry unit
- D. Incorrect correction: ignores the named process in Reaction profiles
Answer
The correct option is reaction profile: correct Unit 4.5 answer for Reaction profiles in a reaction-profile diagram.
Explanation
The correct option is "reaction profile: correct Unit 4.5 answer for Reaction profiles in a reaction-profile diagram" because it supports the approved learning objective: Draw a simple reaction profile for an endothermic reaction. The other options are incorrect or weaker because they are vague, use the wrong Chemistry context, or do not clearly explain the answer for Reaction profiles.
Common mistake
Mislabeling Reaction Profiles
Students often label the energy change in an endothermic reaction profile incorrectly, indicating it as a decrease instead of an increase.
Remember that in an endothermic reaction, the products have more energy than the reactants, so the energy change should be labeled as an increase.
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