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03-15-2008, 07:37 AM
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| Chemistry help!? 1.What mass of carbon dioxide will produced by the combustion of 40.0g of pentane, C5H12? (Hint: C5H12+O2--> CO2 yields CO2 + H20 balance!) is the answer 24.39? if it's wrong can you show me the steps. 2.If an excess of zinc metal is placed in a copper(II) sulfates soulution, the zinc will displace the copper. If 10.8g of copper (II) sulfate is reacted, how many grams of copper metal will be recovered from the solution? (hint: Zn + CuSO4 yields ZnSO4 + Cu) is the answer 4.30 if wrong show me the steps.      |
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