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Amixture of hydrogen and oxygen at 2 atmospheric pressure contains 20% by weight of hydrogen. calculate the partial pressure.!
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What is the most common reason for matter changing its state?
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An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample?
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Amixture of hydrogen and oxygen at 2 atmospheric pressure contains 20% by weight of hydrogen. calcul...
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