Complete and balance the displayed half reaction in acidic aqueous solution taki

Question

Complete and balance the displayed half reaction in acidic aqueous solution taking into account the electrons.

N2O(g) ? NO(aq)

Balance the equation (Note: the coefficients provided may be wrong):

16 Ga(s) + 3 S8(s) ? 11 Ga2S3(s)

Balance the equation (Note: the coefficients provided may be wrong):

6 Mg(s) + N2(g) ? Mg3N2(s)

Balance the equation (Note: the coefficients provided may be wrong):

Sn(s) + 2 HBr(aq) ? SnBr2(aq) + 11 H2(g)

Balance the equation (Note: the coefficients provided may be wrong):

2 PbS(s) + 3 O2(g) ? 2 SO2(g) + 2 PbO(s)

Balance the equation (Note: the coefficients provided may be wrong):

4 C2H2(g) + 5 O2(g) ? 4 CO2(g) + 2 H2O(l)

Balance the equation (Note: the coefficients provided may be wrong):

11 LiH(s) + 10 H2O(l) ? LiOH(aq) + H2(g)

Enter the oxidation state for the element fluorine in MgF2. Enter sign followed by Arabic numeral for oxidation state magnitude. Use 0 if the oxidation state is zero. Examples are: +2 or -4.

Enter the oxidation state for the element hydrogen in N2H4. Enter sign followed by Arabic numeral for oxidation state magnitude. Use 0 if the oxidation state is zero. Examples are: +2 or -4.

Enter the oxidation state for the element hydrogen in LiH. Enter sign followed by Arabic numeral for oxidation state magnitude. Use 0 if the oxidation state is zero. Examples are: +2 or -4.

Enter the oxidation state for the element iodine in TiI2. Enter sign followed by Arabic numeral for oxidation state magnitude. Use 0 if the oxidation state is zero. Examples are: +2 or -4.

Enter the oxidation state for the element bromine in AlBr3. Enter sign followed by Arabic numeral for oxidation state magnitude. Use 0 if the oxidation state is zero. Examples are: +2 or -4.

Enter the oxidation state for the element iodine in IO3-. Enter sign followed by Arabic numeral for oxidation state magnitude. Use 0 if the oxidation state is zero. Examples are: +2 or -4.

If the reactant is MnO2 and the product is MnO4-, calculate the change in the oxidation state of manganese (oxidation state of manganese in product minus the oxidation state of manganese in the reactant). Enter the sign and magnitude of the result, and separated by a comma, also enter O or R to indicate whether manganese is oxidized (O) or reduced (R). Example: -2,O.

If the product is S and the reactant is H2SO3, calculate the change in the oxidation state of sulfur (oxidation state of sulfur in product minus the oxidation state of sulfur in the reactant). Enter the sign and magnitude of the result, and separated by a comma, also enter the number of electrons gained or lost (no signs) by an atom of sulfur. Example: -2,2.

If the reactant is Ce4+ and the product is Ce3+, calculate the change in the oxidation state of cerium (oxidation state of cerium in product minus the oxidation state of cerium in the reactant). Enter the sign and magnitude of the result, and separated by a comma, also enter the number of electrons gained or lost (no signs) by an atom of cerium. Example: -2,2.

Explanation / Answer

MNO2--MNO4-

--->+2-->+7 CHANGE-->5

H2SO3-->S

+4--0 CHANGE=-4

CE+4--CE+3

CHANGE=1

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