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a) Write the charge for each element or ion above.b) Write the half reactions, including electrons, and balance. State the ratiosc) State which substance is oxidized and which is reduced.1) K + NaNO3 → KNO3 + Na2) Mg + AlCl3 → Al + MgCl23) F2 + LiBr → LiF + Br2 4) NH4 I + Cl2 → NH4 Cl + I2