b) $2Al + 3S \rightarrow Al_{2}S_{3}$

c) $2K + Cl_{2} \rightarrow 2KCl$

d) $2Fe + 3Cl_{2} \rightarrow 2FeCl_{3}$

e) $2Cu + O_{2} \rightarrow 2CuO$

f) $4Na + O_{2} \rightarrow 2Na_{2}O$

g) $3Fe + 2O_{2} \rightarrow Fe_{3}O_{4}$

h) $4P + 5O_{2} \rightarrow 2P_{2}O_{5}$

i) $P_{2}O_{5} + 3H_{2}O \rightarrow 2H_{3}PO_{4}$

j) $Na_{2}O + H_{2}O \rightarrow 2NaOH$

k) $2Na + 2H_{2}O \rightarrow 2NaOH + H_{2}$

l) $2Al + 3H_{2}SO_{4} \rightarrow Al_{2}(SO_{4})_{3} + 3H_{2}$

n) $Al_{2}O_{3} + 3H_{2}SO_{4} \rightarrow Al_{2}(SO_{4})_{3} + 3H_{2}O$

l) $2Al(OH)_{3} \rightarrow Al_{2}O_{3} + 3H_{2}O$

o) $Fe_{3}O_{4} + 4H_{2} \rightarrow 3Fe + 4H_{2}O$

p) $Fe_{2}O_{3} + 3H_{2} \rightarrow 2Fe + 3H_{2}O$

q) $4Al + 3O_{2} \rightarrow 2Al_{2}O_{3}$

r) $2Al + 6HCl \rightarrow 2AlCl_{3} + 3H_{2}$

s) $CuO + 2HCl \rightarrow CuCl_{2} + H_{2}O$

t) $CuCl_{2} + 2NaOH \rightarrow 2NaCl + Cu(OH)_{2}$

Em tham khảo nha:

\(\begin{array}{l}
b)\,2Al + 3S \xrightarrow{t^0} A{l_2}{S_3}\\
c)\,2K + C{l_2} \xrightarrow{t^0} 2KCl\\
d)\,2Fe + 3C{l_2} \xrightarrow{t^0} 2FeC{l_3}\\
e)\,2Cu + {O_2} \xrightarrow{t^0} 2CuO\\
f)\,4Na + {O_2} \xrightarrow{t^0} 2N{a_2}O\\
g)\,3Fe + 2{O_2} \xrightarrow{t^0} F{e_3}{O_4}\\
h)\,4P + 5{O_2} \xrightarrow{t^0} 2{P_2}{O_5}\\
i)\,{P_2}{O_5} + 3{H_2}O \to 2{H_3}P{O_4}\\
j)\,N{a_2}O + {H_2}O \to 2NaOH\\
k)\,2Na + 2{H_2}O \to 2NaOH + {H_2}\\
l)\,2Al + 3{H_2}S{O_4} \to A{l_2}{(S{O_4})_3} + 3{H_2}\\
n)\,A{l_2}{O_3} + 3{H_2}S{O_4} \to A{l_2}{(S{O_4})_3} + 3{H_2}O\\
l)\,2Al{(OH)_3} \xrightarrow{t^0} A{l_2}{O_3} + 3{H_2}O\\
o)\,F{e_3}{O_4} + 4{H_2} \xrightarrow{t^0} 3Fe + 4{H_2}O\\
p)\,F{e_2}{O_3} + 3{H_2} \xrightarrow{t^0} 2Fe + 3{H_2}O\\
q)\,4Al + 3{O_2} \xrightarrow{t^0} 2A{l_2}{O_3}\\
r)\,2Al + 6HCl \to 2AlC{l_3} + 3{H_2}\\
s)\,CuO + 2HCl \to CuC{l_2} + {H_2}O\\
t)\,CuC{l_2} + 2NaOH \to Cu{(OH)_2} + 2NaCl
\end{array}\)