Chemistry, 07.11.2020 05:40 struckedblazing
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 heating. Is the sample of red crystals an element or compound?
Answers: 1
Chemistry, 22.06.2019 13:30, citlalli30
1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6
Answers: 2
Susana heats up a sample of red crystals. While the sample is being heated, a gas is released and a...
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