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    Bobert2411's Avatar
    Bobert2411 Posts: 1, Reputation: 1
    New Member

    Oct 14, 2017, 07:42 PM
    A student weighed 1.0000 grams of copper powder. He placed it in a crucible and heated it to complete oxidation to copper oxide. He was able to get a performance of only 15%. What's total mass contained in the crucible (pure copper plus copper oxide) after reaction?
    kcomissiong's Avatar
    kcomissiong Posts: 1,166, Reputation: 276
    Ultra Member

    Oct 17, 2017, 02:42 PM
    Welcome to the site! Its pretty much a policy here that we don't answer homework questions, but if you would show your work, we'd be happy to help you where you are stuck.

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