\(a.\\ \left(1\right)Ca+\frac{1}{2}O_2\underrightarrow{t^o}CaO\\ \left(2\right)CaO+H_2O\rightarrow Ca\left(OH\right)_2\\ b.\\ Ca+2H_2O\rightarrow Ca\left(OH\right)_2+H_2\)
a) 2Ca +O2----->2CaO
CaO +H2O----->Ca(OH)2
b)\(Ca+O_2+H_2O-->Ca\left(OH\right)_2\)
Chúc bạn học tốt
a) 2Ca + O2 ---> 2CaO
CaO + H2O ---> Ca(OH)2
b) Ca + 2H2O ---> Ca(OH)2 + H2