Question

Определите степени окисления атомов каждого из элементов в веществах:
а) S, H2S, SO2, SO3, SCl2;
б) H2SO4, K2SO4, K2SO3, K2S2O8, K2S4O6;
в) Al2(SO4)3, (NH4)2SO4, Fe2(SO4)3, (NH4)2S, FeS2;
г) SO2Cl2, SOCl2, CS2, CH3SH, Na2S2O8.

Answer 1

а) S – S0;
H2S – H+1, S-2;
SO2 – O-2, S+4;
SO3 – O-2, S+6;
SCl2 – Cl-1, S+2;
б) H2SO4 – H+1, O-2, S+6;
K2SO4 – K+1, O-2, S+6;
K2SO3 – K+1, O-2, S+4;
K2S2O8– K+1, O-1,75, S+6;
K2S4O6 – K+1, O-2, S+2,5;
в) Al2(SO4)3 – Al+3, O-2, S+6;
(NH4)2SO4–N-3, H+1, O-2, S+6;
Fe2(SO4)3 - Fe+3, O-2, S+6;
(NH4)2S - N-3, H+1, S-2;
FeS2– Fe+2, S-1;
г) SO2Cl2 – Cl-1, O-2, S+6;
SOCl2 – Cl-1, O-2, S+4;
CS2 – C+4, S-2;
CH3SH – H+1, S-2, C-2;
Na2S2O8 – Na+1, O-1,75, S+6;