User:Venbuu

$H g^{2 +} \overset{I^{-}}{\to} H g I_{2} \overset{I^{-}}{\to} [H g^{I I} I 4]^{2} - N a O H (a q, \infty) S O_{4}^{2 -} + B a^{2 +} ⟶ B a S O_{4} v K C r (S O_{4})_{2} \cdot 12 H_{2} O K C r (S O_{4})_{2} \cdot 12 H_{2} O K C r (S O_{4})_{2} \cdot 12 H_{2} O$