Chemistry, 03.09.2019 18:30, charleneubah3902

Your teacher gives you a black powder. when you dissolve the powder in water, you see red particles that float to the top, black particles that sink to the bottom, and a green liquid.
what was the black powder?
compound
element
pure substance
mixture

Answers: 1

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Your teacher gives you a black powder. when you dissolve the powder in water, you see red particles...