Đáp án:
Giải thích các bước giải:
Bài 3
· $\text{$Na_{2}O$ + $H_{2}O$ $\rightarrow$ 2NaOH }$
· $\text{2NaOH + $SO_{2}$ $\rightarrow$ $H_{2}O$ + $Na_{2}SO_{3}$}$
· $\text{$Na_{2}SO_{3}$ + 2HCl $\rightarrow$ $H_{2}O$ + 2NaCl + $SO_{2}$↑}$
· $\text{$SO_{2}$ + 2KOH $\rightarrow$ $H_{2}O$ + $K_{2}SO_{3}$}$
Bài 4
a. $\text{2KOH + $SiO_{2}$ $\rightarrow$ $H_{2}O$ + $K_{2}SiO_{3}$}$ (có $t^{o}$)
b. $\text{2KOH + $SO_{3}$ $\rightarrow$ $H_{2}O$ + $K_{2}SO_{4}$}$
c. $\text{2KOH + $CO_{2}$ $\rightarrow$ $H_{2}O$ + $K_{2}CO_{3}$}$
$\text{KOH + $CO_{2}$ $\rightarrow$ $KHCO_{3}$}$
d. $\text{6KOH + $P_{2}O_{5}$ $\rightarrow$ $3H_{2}O$ + $2K_{3}PO_{4}$}$
Bài 5
· $\text{$CaCO_{3}$ $\rightarrow$ CaO + $CO_{2}$↑}$ (có $t^{o}$)
· $\text{CaO + $H_{2}O$ $\rightarrow$ $Ca(OH)_{2}$}$
· $\text{$Ca(OH)_{2}$ + $CO_{2}$ $\rightarrow$ $CaCO_{3}$$\downarrow$ + $H_{2}O$}$
· $\text{$CaCO_{3}$ + $2HNO_{3}$ $\rightarrow$ $Ca(NO_{3})_{2}$ + $H_{2}O$ + $CO_{2}$↑}$
Bài 6
a. $\text{$H_{2}O$ + $SO_{3}$ $\rightarrow$ $H_{2}SO_{4}$}$
b. $\text{$H_{2}O$ + $CO_{2}$ $\rightarrow$ $H_{2}CO_{3}$}$
c. $\text{$3H_{2}O$ + $P_{2}O_{5}$ $\rightarrow$ $2H_{2}PO_{4}$}$
d. $\text{$H_{2}O$ + CaO $\rightarrow$ $Ca(OH)_{2}$}$ (ở nhiệt độ phòng)
e. $\text{$H_{2}O$ + $Na_{2}O$ $\rightarrow$ NaOH}$
CHÚC BẠN HỌC TỐT:333
