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Chemistry

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Calculate the mass of water that will be produced when 5.0 grams of H2 is reacted with excess O2.

  • Chemistry -

    2H2 + O2 ==> 2H2O

    mols H2 = grams/molar mass = ?
    mols H2O produced = same as mols H2.(look at the coefficients in the balanced equation.)
    g H2O = mols x molar mass

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