Thực hiện chuỗi chuyển hoá theo sơ đồ: Ca -> CaO-> Ca(OH)2-> CaSO3-> SO2 Huhu giúp em với ạ😭🥲
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(2Ca+O_2\underrightarrow{t^o}2CaO\)
\(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)
\(Ca\left(OH\right)_2+2HCl\rightarrow CaCl_2+2H_2O\)
\(CaCl_2+Na_2SO_4\rightarrow CaSO_4\downarrow+2NaCl\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a. Ca ---(1)---> CaO ---(2)---> Ca(OH)2 ---(3)---> CaCO3 ---(4)---> CaO -----(5)-----> CaCl2
(1) 2Ca + O2 ---to---> 2CaO
(2) CaO + H2O ---> Ca(OH)2
(3) Ca(OH)2 + CO2 ---> CaCO3↓ + H2O
(4) CaCO3 ---to---> CaO + CO2.
(5) CaO + 2HCl ---> CaCl2 + H2O.
b. S --(1)--> SO2 --(2)--> H2SO3 --(3)--> Na2SO3 --(4)--> SO2 --(5)--> CaSO3
(1) S + O2 ---to---> SO2
(2) SO2 + H2O ---> H2SO3
(3) H2SO3 + Na2O ---> Na2SO3 + H2O
(4) Na2SO3 + H2SO4(đặc nóng) ---> Na2SO4 + H2O + SO2↑
(5) SO2 + CaO ---> CaSO3 + H2O
![](https://rs.olm.vn/images/avt/0.png?1311)
a) (1) 5C + 4O2 \(-^{t0}->2CO+3CO2\)
(2) \(CO2+CaO->CaCO3\)
(3) \(CaCO3-^{t0}->CaO+Co2\uparrow\)
(4) \(CaO+H2O->Ca\left(OH\right)2\)
(5) \(Ca\left(OH\right)2+SO2->C\text{aS}O3+H2O\)
b) (1) \(4K+O2-^{t0}->2K2O\)
(2) \(K2O+H2O->2KOH\)
(3) \(2KOH+H2SO4->K2SO4+2H2O\)
c) (1) \(S+O2-^{t0}->SO2\)
(2) \(SO2+2NaOH->Na2SO3+H2O\)
(3) \(Na2SO3+H2SO4->Na2SO4+H2O+SO2\uparrow\)
(4) \(SO2+Ba\left(OH\right)2->B\text{aS}O3+H2O\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(2Ca+O_2\underrightarrow{t^o}2CaO\)
\(CaO+H_2O\rightarrow Ca\left(OH\right)_2\)
\(Ca\left(OH\right)_2+SO_2\rightarrow CaSO_3+H_2O\)
\(SO_2+2KOH\rightarrow K_2SO_3+H_2O\)
\(K_2SO_3+2HCl\rightarrow2KCl+SO_2+H_2O\)
Chúc bạn học tốt
Ca ---(1)---> CaO ---(2)---> Ca(OH)2 ---(3)---> CaSO3 ---(4)---> SO2 ---(5)---> K2SO3 ---(6)---> KCl
(1) 2Ca + O2 ---to---> 2CaO
(2) CaO + H2O ---> Ca(OH)2.
(3) Ca(OH)2 + SO2 ---> CaSO3 + H2O
(4) CaSO3 ---to---> CaO + SO2.
(5) SO2 + 2KOH ---> K2SO3 + H2O
(6) K2SO3 + MgCl2 ---> 2KCl + MgSO3.
![](https://rs.olm.vn/images/avt/0.png?1311)
1. 4Na + O2 ---to---> 2Na2O
Na2O + 2HCl ---> 2NaCl + H2O
NaCl + Al(OH)3 ---> NaOH + AlCl3
2NaOH + H2SO4 ---> Na2SO4 + 2H2O
2. 2Ca + O2 ---> 2CaO
CaO + H2O ---> Ca(OH)2
Ca(OH)2 + CO2 ---> CaCO3↓ + H2O
CaCO3 ---to--> CaO + CO2
CaO + H2SO4 ---> CaSO4 + H2O
![](https://rs.olm.vn/images/avt/0.png?1311)
`a, S + O_2 -> SO_2`.
`SO_2 + H_2O -> H_2SO_3`
`H_2SO_3 + NaOH -> Na_2SO_3 + H_2O`.
`Na_2SO_3 + CaCl_2 -> NaCl + CaSO_3`.
`b, Ca + O_2 -> CaO`
`CaO + Ba(OH)_2 -> Ca(OH)_2 + BaO`
`Ca(OH)_2 + HCl -> CaCl_2 + H_2O`
`CaCl_2 + BaCO_3 -> CaCO_3 + BaCl_2`.