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What mineral is the hardest known substance in nature?
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If equal masses of the listed metals were collected , which would have a greatest volume ? a. aluminum 2.70,b. zinc7.14,c. copper 8.92,d. lead 11.34
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If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million
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An electrons position cannot be known precisely only it's probability of being in a certain location can be known
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What mineral is the hardest known substance in nature?...
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