General Chemistry 1: Redox Reactions

P$_4$ + 6 Cl$_2$ $\longrightarrow$ 4 PCl$_3$

Assign oxidation numbers for each of the atoms in the above equation.

2 MnO$_4$ + 5 H$_2$O$_2$ + 6 H $^+$ $\longrightarrow$ 5 O$_2$ + 2 Mn$^{2+}$ + 8 H$_2$O

Assign oxidation numbers for each of the atoms in the above net ionic equation. Identify which elements have been oxidized or reduced.

5 SO$_2$ + MnO$_4^-$ + 2 H$_2$O $\longrightarrow$ 5 SO$_4^{2-}$ + 2 Mn$^{2+}$ + 4 H$^+$

Assign oxidation numbers for each of the atoms in the above net ionic equation. Identify the oxidizing and reducing agents.