N
nghgh97
ca(OH)2 + CÒ ==> CaCO3 + H2O
~~~~~~~~~~CaCO3~~~~`
CaCO3⟶CaO+CO2 (đk: t0 )
CO2
ca(OH)2 + CÒ ==> CaCO3 + H2O
~~~~~~~~~~CaCO3~~~~`
CaCO3⟶CaO+CO2 (đk: t0 )
CO2
CO2 + BaO >>>BaCO3
BaCO3
--------------------------------------------------------------------------------------------------------------------------------------------
BaCO3+H2SO4⟶BaSO4↓+H2O+CO2
H2O
Ca+2H2O⟶Ca(OH)2+H2↑
H2
c2h4+h2⟶c2h6 (đk: ni , t0 )
c2h6
c2h6 >>>>>c2h2 +2h2
c2h2+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
3C2H2⟶C6H6 (đk: C , 6000C )
C6H6
C6H6 + 3H2 >>ni>>>C6H12
C6H12--------------------------------------------------------------------------------------------------------------------------
C6H12+9O2⟶6CO2+6H2O ( t0 )
CO2
CO2 + BaO >>>BaCO3
BaCO3===================================================================================================
BaCO3+Na2SO4→BaSO4↓+Na2CO3
Na2CO3
Na2CO3+2HCl→2NaCl+H2O+CO2↑
NaCl
2KBr+Cl2=2KCl+Br22NaCL + 2H20 >dpcmnc>>2NaOH + Cl2 + H2
Cl2 ---------------------------------------------------------------------------------------------------------------------------------------------------------------