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22 August, 17:20

what is the balanced equation for the reaction of solid magnesium metal with oxygen gas to produce solid magnesium oxide

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  1. 22 August, 20:50
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    2Mg + O₂ ⟶ 2MgO

    Explanation:

    Step 1. Start with the most complicated-looking formula (O₂?).

    Put a 1 in front of it.

    Mg + 1O₂ ⟶ MgO

    Step 2. Balance O.

    We have fixed 2 O on the left. We need 2O on the right. Put a 2 in front of MgO.

    Mg + 1O₂ ⟶ 2MgO

    Step 3. Balance Mg.

    We have fixed 2 Mg on the right-hand side. We need 2 Mg atoms on the left. Put a 2 in front of Mg.

    2Mg + 1O₂ ⟶ 2MgO

    Every formula now has a coefficient. The equation should be balanced. Let's check.

    Atom On the left On the right

    Mg 2 2

    O 2 2

    All atoms are balanced.

    The balanced equation is

    2Mg + O₂ ⟶ 2MgO
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