Объяснение:
а) KHS+H₂O = KOH+H₂S↑
K⁺+HS⁻+H₂O = K⁺+OH⁻+H₂S↑
HS⁻+H₂O = OH⁻+ H₂S↑
б) Zn(NO₃)₂+2KOH=Zn(OH)₂↓+ 2KNO₃
Zn²⁺+2NO₃⁻+2K⁺+ OH⁻= Zn(OH)₂↓+ 2K⁺+2NO₃⁻
Zn²⁺+ OH⁻= Zn(OH)₂↓
Общее уравнение реакции:
Zn(NO₃)₂+ 2KHS+2H₂O = Zn(OH)₂↓+ 2KNO₃ + 2H₂S↑
Zn²⁺+2NO₃+ 2K⁺+2HS⁻+2H₂O = Zn(OH)₂↓+ 2K⁺+2NO₃⁻ + 2H₂S↑
Zn²⁺+2HS⁻+2H₂O = Zn(OH)₂↓+ 2H₂S↑
Объяснение:
а) KHS+H₂O = KOH+H₂S↑
K⁺+HS⁻+H₂O = K⁺+OH⁻+H₂S↑
HS⁻+H₂O = OH⁻+ H₂S↑
б) Zn(NO₃)₂+2KOH=Zn(OH)₂↓+ 2KNO₃
Zn²⁺+2NO₃⁻+2K⁺+ OH⁻= Zn(OH)₂↓+ 2K⁺+2NO₃⁻
Zn²⁺+ OH⁻= Zn(OH)₂↓
Общее уравнение реакции:
Zn(NO₃)₂+ 2KHS+2H₂O = Zn(OH)₂↓+ 2KNO₃ + 2H₂S↑
Zn²⁺+2NO₃+ 2K⁺+2HS⁻+2H₂O = Zn(OH)₂↓+ 2K⁺+2NO₃⁻ + 2H₂S↑
Zn²⁺+2HS⁻+2H₂O = Zn(OH)₂↓+ 2H₂S↑