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27-01-2016
Chemistry

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What is the most used element in the periodic table? what are its uses?

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Аноним Аноним

27-01-2016

Hydrogen makes up about 3/4 the mass of the universe. So this is the most important!

More than 1 would be Hydrogen, Oxygen, Argon, Nitrogen, Carbon. They make up air and water(H2O)

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