Question

5个盐的水解方程式和水解离子方程式

CuCl2 Fe(NO3)3 Na2S K2CO3 Al2(SO4)3

Answer 1

水解方程式
CuCl2+2H2O=Cu(OH)2+2HCl
Fe(NO3)3+3H2O=Fe(OH)3+3HNO3
Na2S+2H2O=2NaOH+H2S
K2CO3+2H2O=2KOH+H2CO3
Al2(SO4)3+6H2O=2Al(OH)3+3H2SO4
水解离子方程式
(Cu²+)+2H2O<=>Cu(OH)2+2(H+)
(Fe³+)+3H2O<=>Fe(OH)3+3(H+)
S²ˉ+H2O<=>HSˉ+OHˉ
CO3²ˉ+H2O<=>HCO3ˉ+OHˉ
(Al³+)+3H2O<=>Al(OH)3+3(H+)

Answer 2

1. CuCl2 + 2H2O<=>Cu(OH)2+2HCl
Cu2+ + 2H2O<=>Cu(OH)2+ 2H+
2.Fe(NO3)3 +3H2O<=>Fe(OH)3+3HNO3
Fe3+ +3H2O<=>Fe(OH)3+3H+
3.Na2S +H2O<=>NaHS+NaOH
NaHS+H2O<=>H2S+NaOH
S2- + H2O<=>HS-+OH-
HS-+ H2O<=>H2S+OH-
4.K2CO3 + H2O<=>KHCO3+KOH
KHCO3+H2O<=>H2CO3+KOH
CO32-+H2O<=>HCO3-+OH-
HCO3-+H2O<=>H2CO3+OH-
5.Al2(SO4)3+6H2O<=>2Al(OH)3+3H2SO4
Al3++3H2O<=>Al(OH)3+3H+

Answer 3

水解方程式CuCl2+2H2O Cu(OH)2+2HCl
Fe(NO3)3+3H2O Fe(OH)3+3HNO3
Na2S+H2O NaOH+ Na HS
K2CO3+H2O KOH+ K HCO3
Al2(SO4)3+6H2O 2Al(OH)3+3H2SO4
水解离子方程式
Cu²+2H2O Cu(OH)2+2H+
Fe³++3H2O Fe(OH)3+3H+
S²ˉ+H2O HSˉ+OHˉ
CO3²ˉ+H2O HCO3ˉ+OHˉ
Al³++3H2O Al(OH)3+3H+