Social Studies, 01.12.2021 21:40, gabby7398

Susana heats up a sample of red crystals. While the
sample is being heated, a gas is released and a blue
powder is left after the heating. Is the sample of red
crystals an element or a compound?

Answers: 2

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Susana heats up a sample of red crystals. While the
sample is being heated, a gas is release...