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Chemistry, 21.06.2019 18:30
Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?
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Chemistry, 22.06.2019 06:30
What effect might melting sea ice have for people who live in coastal areas?
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Chemistry, 22.06.2019 20:00
State one important difference between a physical change and a chemical change?
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A gas mixture being used to simulate the atmosphere of another planet consists of 323 mg of methane,...
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