To make salt water a heterogeneous mixture, you would have to

Salt water is made by mixing salt (NaCl) in water. It is a homogeneous mixture and a heterogeneous one. A difference between the two is that concentration is same everywhere in case of a homogeneous mixture, whereas, in case of a heterogeneous mixture, the concentration varies from place to place within a mixture.

Explanation:

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.

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explanation:

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