What is the oxidation number of molybdenum, $Mo,$ in $()4?$

a$.+6$

b$.+4$

c$.+3$

d$.+7$

e$.+5$

Redox Equation:

$KMn{O}_4+HClKCl+MnC{l}_2+C{l}_2+H_{2}O$

Use the Redox Equation. What is the oxidation number of $C{l}_{in}C{l}_2?$

a$.+1$

b$.0$

c$.-1$

d$.-2$

e$.+7$

Use the Redox Equation. Which reactant is the oxidizing agent?

a$.K^{+}$

b$.KMn{O}_4$

c$.HCl$

d$.C{l}^{-}$

e$.C{l}_2$

Use the Redox Equation. How does the oxidation number of Mn change in the reaction?

a$.+7$ to $-2$

b$.+1$ to $-2$

c$.+1$ to $-1$

d$.+7$ to $+2$

e$.+4$ to $+2$

If you balance the Redox Equation, what is the coefficient of $H_{2}O?$

a$.2$

b$.3$

c$.8$

d$.10$

e$.6$

Which statement about the following reaction is correct?

$6$NaOH$+3B{r}_{2}NaBr{O}_3+5$NaBr$+3H_{2}O$

a$.$ Bromine is reduced, and sodium is oxidized.

b$.$ Hydrogen is oxidized, and oxygen is reduced.

c$.$ Bromine is both oxidized and reduced.

d$.$ Oxygen is reduced, and sodium is oxidized.

e$.$ This is not a redox reaction.

$13.$ Which statement about the following equation is correct?

$3Cu+8HN{O}_{3}3Cu(N{O}_3{)}_2+2NO+4H_{2}O$

a$.$ Nitrogen is reduced, and copper is oxidized.

b$.$ Nitrogen is oxidized, and copper is oxidized.

c$.$ Nitrogen is reduced, and oxygen is oxidized.

d$.$ Nitrogen is oxidized, and oxygen is oxidized.