Question detail
What happens to the elements in a compound when it undergoes a chemical reaction?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes
Question
- A. They are separated into their individual elements.
- B. They remain unchanged.
- C. They combine to form a new compound.
- D. They are converted into energy.
Answer
The correct option is They are separated into their individual elements..
Explanation
The correct option is They are separated into their individual elements.. They are separated into their individual elements. is correct because it directly supports the approved learning objective to explain that compounds can only be separated into elements by chemical reactions. This is tested in the subtopic Atoms, elements and compounds within A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes, so the reasoning must stay within AQA GCSE Chemistry 8462 Unit 4.1. The other options are weaker because they either confuse a nearby Chemistry concept, use the wrong subtopic context, or do not answer Atoms, elements and compounds precisely. Repair marker c99dba1d keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.
Common mistake
Misunderstanding Compound Separation
Students often believe that compounds can be separated into their elements by physical methods, such as filtration or evaporation.
Emphasize that compounds can only be separated into elements through chemical reactions, not physical methods.
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