Bạn tham khảo!
$\text{1. 2Ba+O2$\xrightarrow{t^o}$2BaO}$
$\text{2. BaO+H2O$\rightarrow$Ba(OH)2}$
$\text{3. Ba(OH)2+H2CO3$\rightarrow$BaCO3+2H2O}$
$\text{4. BaO+H2CO3$\rightarrow$BaCO3+H2O}$
$\text{5. Ba+2H2O$\rightarrow$H2↑+Ba(OH)2}$
$\text{6. Ba(OH)2+H2SO4$\rightarrow$BaSO4↓+2H2O}$
#TRANPHAMGIABAO
