Question detail
Which diagram or label choice best matches endothermic 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. endothermic 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 endothermic reaction: correct Unit 4.5 answer for Energy transfer during exothermic and endothermic reactions.
Explanation
The correct option is endothermic reaction: correct Unit 4.5 answer for Energy transfer during exothermic and endothermic reactions. It directly supports the approved learning objective to identify thermal decomposition and the reaction of citric acid with sodium hydrogencarbonate as examples of endothermic reactions. 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
Confusing Endothermic Reactions
Students often confuse thermal decomposition with exothermic reactions, thinking they release energy instead of absorbing it.
Remember that thermal decomposition is an endothermic reaction that takes in energy from the surroundings, while exothermic reactions release energy.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 4
Choose an answer, get feedback, then move sideways through the set.