$\color{Red}{\fbox{★Hóa 9★}}\color{Magenta}{\fbox{game nối chuỗi phản ứng VER.3}}$

[chungthuychung]

$Mg(OH)_2-----------to---------->MgO+H_2O$
---------------------------------------------

 

[phankyanhls2000]

MgO+H2SO4--->MgSO4+H2O
...............................................

 

[chungthuychung]

$MgSO_4+NaOH-------->Mg(OH)_2+Na_2SO_4$
------------------------------------------------------

 

[lp_qt]

$Na_2SO_4+BaCL_2 \rightarrow 2NaCl+BaSO_4 $ .

 

[chungthuychung]

$NaCL------dp----->Na+Cl_2$
-0---------------------------------------

 

[phamvananh9]

Cl2 + 2FeCl2 --t^o--> 2FeCl_3
-------------------------------------------------------------------------

 

[chungthuychung]

$FeCl_3+NaOH--------------->Fe(OH)_3+NaCl$
-----------------------------------------------------

 

[phankyanhls2000]

Fe(OH)3--to-->Fe2O3+H2O
...........................................

 

[nom1]

Fe(OH)3--to-->Fe2O3+H2O
...........................................

H2O + Na2O -> NaOH
..............................

 

[phankyanhls2000]

NaOH+CO2--->NaHCO3
.....................................

 

[trannrinn]

HCl+ NaHCO3----->H2O+NaCl +CO2 .

 

[chungthuychung]

$CO_2+Ca(OH)_2--------->CaCO_3+H_2O$
-------------------------------------------

 

[phankyanhls2000]

CaCO3--to-->CaO+CO2
......................................

 

[trannrinn]

5C + 2CaO---->2CaC2+CO2 .

 

[phankyanhls2000]

Co2+h2o<->h2co3
.................................
Happy new year

 

[anhto2011]

Co2+h2o<->h2co3
.................................
Happy new year

Không phản ứng.Bị phân hủy
....................................................

 

[nom1]

Co2+h2o<->h2co3
.................................
Happy new year

với lớp 9 thì pứ trên đúng. sgk có
H2CO3 + Ca(OH)2 -> CaCO3 + 2H2O

 

[chungthuychung]

$CaCO_3--------to------>CaO+CO_2$
----------------------------------

 

[phankyanhls2000]

CaO+CO2--->CaCO3
.................................
.................................

 

[nom1]

CaO+CO2--->CaCO3
.................................
.................................

CaCO3 -to-> CaO + CO2
..................................