Write the balanced molecular, complete ionic, and net ionic equations for the following
reactions in aqueous solution:
a. magnesium chloride reacts with potassium carbonate
b. sulfuric acid reacts with sodium hydroxide

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  1. Balanced molecular equation is this.
    MgCl2(aq) + K2CO3(aq) ==> MgCO3(s) + 2KCl(aq)

    Balanced full ionic equation is this.
    Rules: If an insoluble material write as molecule. If a gas write as molecule. If a weak electrolyte write as molecule. Write all others as ions.
    Mg^2+(aq) + 2Cl^-(aq) + 2K^+(aq) + CO3^2-(aq) ==> MgCO3(s) + 2K^+(aq) + 2Cl^-(aq)

    Now cancel ions common to both sides. The result will be the net ionic equation.
    2K^+ cancel; 2Cl^- cancel.
    Mg^2+(aq) + CO3^2-(aq) ==> MgCO3(s)

    Use these principles to do the second one.
    The molecular equation is this.
    H2SO4(aq) + 2NaOH(aq) ==> Na2SO4(aq) + 2H2O(l)

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