User:Droog Andrey/Sandbox

$$\mathrm{\overset{+4}C\overset{-2}S_2 + \overset{-3}NH_4\overset{+7}{Cl}O_4 \rightarrow \overset{+2}CO + \overset{+4}SO_2 + \overset{0}N_2 + H\overset{-1}{Cl} + H_2O}$$

$$\mathrm{\overset{+1}{Cu}_2\overset{-2}S + H\overset{+5}NO_3 \rightarrow \overset{+2}{Cu}(\overset{+5}NO_3)_2 + \overset{+2}{Cu}\overset{+6}SO_4 + \overset{+4}NO_2 + H_2O}$$

$$\mathrm{\overset{+2}{Fe}(\overset{+5}NO_3)_2 + H_2O \rightarrow \overset{+3}{Fe}(\overset{+5}NO_3)_3 + \overset{+3}{Fe}(OH)_3 + \overset{+2}NO}$$

$$\mathrm{\overset{0}P_2\overset{0}I_4 + \overset{0}P_4 + H_2O \rightarrow \overset{-3}PH_4\overset{-1}I + H_3\overset{+5}PO_4}$$

$$\mathrm{\overset{+3}{As}_2\overset{-2}S_3 + H\overset{+5}NO_3 \rightarrow H_3\overset{+5}{As}O_4 + H_2\overset{+6}SO_4 + \overset{+2}NO + H_2O}$$

$$\mathrm{\overset{+4}K\overset{-2}O_2 + C\overset{-2}O_2 + H_2\overset{-2}O \rightarrow \overset{+1}K_2C\overset{-2}O_3 + KHC\overset{-2}O_3 + \overset{0}O_2}$$

$$\sum_{n=1}^{\infty}\mu(n) = \frac{1}{\zeta(0)} = -2$$