Đáp án:
Bạn tham khảo lời giải ở dưới nhé !!!
Giải thích các bước giải:
\(\begin{array}{l}
3.\\
a){H_2}O\\
CaO + {H_2}O \to Ca{(OH)_2}\\
S{O_3} + {H_2}O \to {H_2}S{O_4}\\
C{O_2} + {H_2}O \to {H_2}C{O_3}\\
N{a_2}O + {H_2}O \to 2NaOH\\
b)HCl\\
CaO + 2HCl \to CaC{l_2} + {H_2}O\\
F{e_2}{O_3} + 6HCl \to 2FeC{l_3} + 3{H_2}O\\
N{a_2}O + 2HCl \to 2NaCl + {H_2}O\\
c)NaOH\\
S{O_3} + 2NaOH \to N{a_2}S{O_4} + {H_2}O\\
C{O_2} + 2NaOH \to N{a_2}C{O_3} + {H_2}O\\
4.\\
a){H_2}O\\
BaO + {H_2}O \to Ba{(OH)_2}\\
S{O_2} + {H_2}O \to {H_2}S{O_3}\\
{P_2}{O_5} + 3{H_2}O \to 2{H_3}P{O_4}\\
{K_2}O + {H_2}O \to 2KOH\\
b){H_2}S{O_4}\\
BaO + {H_2}S{O_4} \to B{\rm{aS}}{O_4} + {H_2}O\\
CuO + {H_2}S{O_4} \to Cu{\rm{S}}{O_4} + {H_2}O\\
{K_2}O + {H_2}S{O_4} \to {K_2}S{O_4} + {H_2}O\\
c)KOH\\
S{O_2} + 2KOH \to {K_2}S{O_3} + {H_2}O\\
{P_2}{O_5} + 6KOH \to 2{K_3}P{O_4} + 3{H_2}O
\end{array}\)
