Which of the following chemical equations show oxidation-reduction reactions?
1) Mg(s) + I₂(aq) $\to$ MgI₂(s)
2) Pb(ClO₄) ₂(aq) + 2 KI(aq) $\to$ PbI₂(s) + 2 KClO₄(aq)
3) Fe₂O₃(s) + 3 CO(g) $\to$ 2 Fe(s) + 3 CO₂(g)

Question

Which of the following chemical equations show oxidation-reduction reactions?
1) Mg(s) + I₂(aq)

\to

MgI₂(s)
2) Pb(ClO₄) ₂(aq) + 2 KI(aq)

\to

PbI₂(s) + 2 KClO₄(aq)
3) Fe₂O₃(s) + 3 CO(g)

\to

2 Fe(s) + 3 CO₂(g)

Quizplus · Accepted Answer

In equation 1, Mg is oxidized and I2 is reduced. In equation 3, Fe2O3 is reduced to Fe, and CO is oxidized to CO2.

Which of the Following Chemical Equations Show Oxidation-Reduction Reactions? 1)Mg(s) →\to→