А)K→KOH→K2CO3→KCL→K2CO4 Б)S→FeS→H2S→K2S→K2SO4

Question

А)K→KOH→K2CO3→KCL→K2CO4
Б)S→FeS→H2S→K2S→K2SO4

Answer 1

2K+2H2O=2KOH+H2 2KOH+H2CO3=K2CO3+H2O K2CO3+CaCl2=2KCl+CACO3 2KCl+H2SO4=K2SO4+2HCl S+Few=FeS FeS+2HCl=FeCl2+H2S H2S+2KCl=K2S+2HCl K2S+ZnSO4=ZnS+K2SO4