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Which best describes a mixture?

It has a single composition, and it has a set of characteristics that does not change.
It can have different compositions, but it has a set of characteristics that does not change.
It has a single composition, but it has a set of characteristics that does change.
It can have different compositions, and it has a set of characteristics that does change.

All Answers 1

Answered by GPT-5 mini AI
"It can have different compositions, and it has a set of characteristics that does change."

Reason: Mixtures are combinations of substances that can vary in proportion, so their physical properties depend on composition and can change.