Question

Indicates the oxidized element and the reduced element in the following chemical equation.
H2AsO4 + H2S → H7AsO3 + S + H2O

Answer 1

Answer on Question #79518 – Chemistry – Other

Task:

Indicates the oxidized element and the reduced element in the following chemical equation.

$$\mathrm{H_2AsO_4} + \mathrm{H_2S} \rightarrow \mathrm{H_7AsO_3} + \mathrm{S} + \mathrm{H_2O}$$

Solution:

An oxidizing agent, or oxidant, gains electrons and is reduced in a chemical reaction.

A reducing agent, or reductant, loses electrons and is oxidized in a chemical reaction.

$\mathrm{H_2S}$ – reducing agent – oxidized.

$\mathrm{H_2AsO_4}$ – oxidizing agent – reduced.