Question

26. Potassium nitrate is used in the production of fireworks, explosives, and matches. It is also used in curing foods and to modify the burning proper.ies of tobacco. The reaction for the industrial production of KNO3 is summarized below. Determine the oxidation number for each atom, and decide whether the reaction is a redox reaction or not. If it is redox, identify which substance is oxidized, which substance is reduced, the oxidizing agent, and the reducing agent. (1/2 point each) 4KCI + 4HNO3 + 02 - 4KNO3 + 2Cl2 + 2H20 KVC K in KCI Cl in KCI H in HNO; N in HNO O in HNO; O in O2 N in KNO; K in KNO O in KNO3 Clin Cl2 H in H20 O in H2O oxidized reduced oxidizing agent reducing agent

Answer 1

You have the number of oxidation in each atom:

In KCl:

K: +1

Cl: -1

In HNO3:

H: +1

N: +5

O: -2

In O2:

O: 0

In KNO3:

K: +1

N: +5

O: -2

In Cl2:

Cl: 0

In H2O:

H: +1

O: -2

KCl oxidizes

O2 is reduced

Oxidizing agent: O2

Reducing agent: KCl

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