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Các trường hợp tạo kết tủa gồm:
Ba(HCO3)2 + 2NaOH → BaCO3↓ + Na2CO3 + 2H2O
Ba(HCO3)2 + Na2CO3 → BaCO3↓ + 2NaHCO3
Ba(HCO3)2 + 2KHSO4 → BaSO4↓ + K2SO4 + 2CO2 + 2H2O
Ba(HCO3)2 + Na2SO4 → BaSO4↓ + 2NaHCO3
Ba(HCO3)2 + Ca(OH)2 → BaCO3↓ + CaCO3↓ + 2H2O
Ba(HCO3)2 + H2SO4 → BaSO4↓ + 2CO2 + 2H2O
2Ca + O2 
2CaO
CaO + H2O → Ca(OH)2
Ca(OH)2 + CO2 → CaCO3 + H2O
CaCO3 + 2HCl → CaCl2 + CO2 + H2O
CaCl2 + 2AgNO3 → 2AgCl + Ca(NO3)2
Hoàn thành phương trình theo sơ đồ
Ca...CaO...Ca(OH)2...CaO3...Cacl2...Ca(NO3)2...
\(Ca+H_2O\rightarrow Ca\left(OH\right)_2\)
\(Ca\left(OH\right)_2+CO_2\rightarrow CaCO_3+H_2O\)
\(CaCO_3\rightarrow CaO+CO_2\)
\(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)
\(Ca\left(OH\right)_2+CO_2\rightarrow Ca\left(HCO_3\right)_2\)
\(Ca\left(HCO_3\right)_2+HCl\rightarrow H_2O+CO_2+CaCl_2\)
2AgNO3 + CaCl2 → 2AgCl + Ca(NO3)2
K2SO4 + Ba(OH)2 → BaSO4 + 2KOH
Fe2(SO4)3 + 3Ba(OH)2 → 3BaSO4 + 2Fe(OH)3
Na2CO3 + BaCl2 → BaCO3 + 2NaCl
Ba(HCO3)2 + Na2CO3 → BaCO3 + 2NaHCO3
MgCO3 + K2SO4 ----//---->
Ca(HCO3)2 + 2KOH → CaCO3 + K2CO3 + 2H2O
2NaHSO4 + 2KOH → K2SO4 + Na2SO4 + 2H2O
2KOH + H2SO4 → K2SO4 + 2H2O
Ba(OH)2 + 2HCl → BaCl2 + 2H2O
Fe(OH)2 + 2HCl → FeCl2 + 2H2O
2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O
Na2CO3 + 2HCl → 2NaCl + H2O + CO2
Ca(HCO3)2 + 2HNO3 → Ca(NO3)2 + 2H2O + 2CO2
2NaOH + CuSO4 → Na2SO4 + Cu(OH)2
Ca(OH)2 + BaCl2 ----//---->
Fe2(SO4)3 + 6KOH → 3K2SO4 + 2Fe(OH)3
FeSO4 + Cu(OH)2 ----//---->
$\rm 2Ca + O_2 \xrightarrow{t^o} 2CaO$
$\rm CaO + H_2O \rightarrow Ca(OH)_2$
$\rm Ca(OH)_2 + 2HCl \rightarrow CaCl_2 + 2H_2O$
$\rm CaCl_2 + 2AgNO_3 \rightarrow 2AgCl \downarrow + Ca(NO_3)_2$
a)
$CaCO_3 \xrightarrow{t^o} CaO + CO_2$
$CaO + H_2O \to Ca(OH)_2$
$Ca(OH)_2 + 2HCl \to CaCl_2 + 2H_2O$
$CaCl_2 + 2AgNO_3 \to Ca(NO_3)_2 + 2AgCl$
b)
$2Mg + O_2 \xrightarrow{t^o} 2MgO$
$MgO + 2HCl \to MgCl_2 + H_2O$
$MgCl_2 + 2KOH \to Mg(OH)_2 + 2KCl$
$Mg(OH)_2 + H_2SO_4 \to MgSO_4 + 2H_2O$
Ca(OH)2+ CO2--->Ca(HCO3)2
Ca(OH)2+ Mg(NO3)2----->Ca(NO3)2+Mg(OH)2
CaCl2+ 2AgNO3--->2AgCl+Ca(NO3)2
Ca(HCO3)2+ 2HCl---->CaCl2+2CO2+2H2O
Chúc bạn học tốt :))
Ca(OH)2 + \(2CO_2\)->Ca(HCO3)2
Ca(OH)2 \(+2HNO_3\)-> Ca(NO3)2\(+2H_2O\)
CaCl2\(+2HNO_3\) -> Ca(NO3)2\(+2HCl\)
Ca(HCO3)2 \(+2HCl\)->CaCl2\(+2CO_2+2H_2O\)