Question detail
Which diagram or label choice best matches exothermic reaction in this Energy changes subtopic?
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. exothermic reaction: correct Unit 4.5 answer for Energy transfer during exothermic and endothermic reactions
- B. Incorrect label: confuses the labelled quantity with activation energy
- C. Incorrect label: places the idea on the wrong part of the reaction or cell model
- D. Incorrect label: uses the product/reactant relationship the wrong way round
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 calculation 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.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.