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Chemistry, 21.06.2019 15:30, milkshakegrande101
Arock can be broken down into different kinds of substances by physical processes. no chemical reactions are needed to separate different parts of a rock into pure substances. this is because a rock is a(n)
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Chemistry, 23.06.2019 01:30, Nathaliasmiles
If a particle has z = 25 and 23 electrons, what is its charge?
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English, 01.10.2019 12:30
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