Em tham khảo nha:
\(\begin{array}{l}
a)\,\\
BaC{l_2} + {(N{H_4})_2}S{O_4} \to BaS{O_4} + 2N{H_4}Cl\\
B{a^{2 + }} + S{O_4}^{2 - } \to BaS{O_4}\\
b)\\
CaC{O_3} + {H_2}S{O_4} \to CaS{O_4} + C{O_2} + {H_2}O\\
CaC{O_3} + 2{H^ + } + S{O_4}^{2 - } \to CaS{O_4} + C{O_2} + {H_2}O\\
c)\\
Al{(OH)_3} + 3HN{O_3} \to Al{(N{O_3})_3} + 3{H_2}O\\
Al{(OH)_3} + 3{H^ + } \to A{l^{3 + }} + 3{H_2}O\\
d)\\
2Al{(OH)_3} + Ba{(OH)_2} \to Ba{(Al{O_2})_2} + 4{H_2}O\\
Al{(OH)_3} + O{H^ - } \to Al{O_2} + 2{H_2}O\\
e)\\
CuS{O_4} + N{a_2}S \to CuS + N{a_2}S{O_4}\\
C{u^{2 + }} + {S^{2 - }} \to CuS\\
f)\\
Pb{(N{O_3})_2} + {K_2}S \to PbS + 2KN{O_3}\\
P{b^{2 + }} + {S^{2 - }} \to PbS\\
g)\\
Zn{(OH)_2} + 2HCl \to ZnC{l_2} + 2{H_2}O\\
Zn{(OH)_2} + 2{H^ + } \to Z{n^{2 + }} + 2{H_2}O\\
h)\\
Zn{(OH)_2} + 2KOH \to {K_2}Zn{O_2} + 2{H_2}O\\
Zn{(OH)_2} + 2O{H^ - } \to Zn{O_2} + 2{H_2}O
\end{array}\)
