Question detail

Which of the following describes the properties of substances in a mixture?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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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 remain unchanged
B. They change when mixed together
C. They form new substances
D. They become a single compound

Answer

The correct option is They remain unchanged.

Explanation

The correct option is They remain unchanged. They remain unchanged is correct because it directly supports the approved learning objective to define a mixture as two or more elements or compounds that are not chemically combined. This is tested in the subtopic Mixtures 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 Mixtures precisely. Repair marker 71809455 keeps this question distinct from adjacent atom, ion, isotope, group, period, and electronic-structure questions.

Common mistake

Misunderstanding Mixtures

Students often define a mixture as a combination of elements or compounds that are chemically combined.

Remember that a mixture consists of two or more elements or compounds that are not chemically combined.

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