1.
a) Br2+H2S = S↓ + 2HBr
b) Ca +H2SO3 = CaSO3+H2↓
2.
a)H2SO3+2KOH=KHSO3 +H2O
b)K2S+ Hg(NO3)2 = HgS +2KNO3
1.
a) Br2+H2S = S↓ + 2HBr
b) Ca +H2SO3 = CaSO3+H2↓
2.
a)H2SO3+2KOH=KHSO3 +H2O
b)K2S+ Hg(NO3)2 = HgS +2KNO3