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23 July, 09:52

Balance the equation Mg+Fe2O3->MgO+Fr

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Answers (2)
  1. 23 July, 10:31
    0
    3Mg + Fe2O3 - --> 3 MgO + 2Fe

    Explanation:

    3Mg + Fe2O3 - --> 3 MgO + 2Fe

    Mg 3 Mg 3

    Fe 2 Fe 2

    O 3 O 3

    before after
  2. 23 July, 11:01
    0
    3Mg + Fe2O3 = 2Fe + 3MgO

    Explanation:

    Make sure the number of each element equal on both right and left hand side

    Eg. There are 3 molecules of oxygen on left hand side so to balance right hand side add a 3 in front of MgO, because you've added a 3 in front of MgO you now have to add a 3 in front of Mg on the left hand side to balance it out and continue to do so for the rest of the chemical equation.
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