Which sample is a pure substance?
a test tube of zinc oxide
a container of zinc and oxyg...
Chemistry, 31.03.2020 20:23 chandataylor4215
Which sample is a pure substance?
a test tube of zinc oxide
a container of zinc and oxygen
a flask of pond water
a jar of soil
Answers: 2
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Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g. what is the percent by mass of water in the hydrate? %
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