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a) HCl(đ) + MnO2 -t0-> Cl2 + MnCl2 + H2O
b) CuO + 2HCl - > CuCl2 + H2O
c) 2HCl + Na2Co3 -> CO2 + 2NaCl + H2O
d) HCl + AgNO3 - > AgCl + HNO3
e) 2KCl + 2H2O \(\xrightarrow[cmn]{đpdd}\) 2KOH + Cl2 + H2
f) Cl2 + H2O - > HCl + HClO
Cl2 + NaOH - > NaCl + NaClo
g Cl2 + Ca(OH)2 -t0->CaoCl2 + H2O
h) 2CaOCl2+ H2O + CO2 - > CaCO3 + CaCl2 +2HClO
NaClo + CO2 + H2O - > NaHCO3 + HClO
2NaCl + 2H2O \(\underrightarrow{đpddcmn}\)2NaOH + Cl2 + H2
Cl2 + H2 \(\rightarrow\)2HCl
Fe2O3 + 6HCl \(\rightarrow\)2FeCl3 + 3H2
2FeCl3 + Cu \(\rightarrow\)CuCl2 + 2FeCl2
1.1 C +CO2-----> 2CO
2CO+O2--->2 CO2
CO2+2KOH-> K2CO3+H2O
K2CO3+H2O+CO2----> 2KHCO3
1.2 3Cl2+2Fe ---> 2FeCl3
2FeCl3+3Ba(OH)2----> 3BaCl2+2Fe(OH)3
BaCl2+Na2SO4----> 2NaCl+BaSO4
2NaCl----> Cl2+2Na
Cl2+2NaOH----> NaClO+NaCl+H2O
a, PTHH :
\(2Fe+3Cl_2\rightarrow2FeCl_3\) (nhiệt độ>250oC)
\(2FeCl_3+3Ba\left(OH\right)_2\rightarrow3BaCl_2+2Fe\left(OH\right)_3\)
\(BaCl_2+Na_2SO_4\rightarrow BaSO_4+2NaCl\)
\(2NaCl\rightarrow2Na+Cl_2\) ( điện phân nóng chảy )
\(Cl_2+H_2O\rightarrow HCl+HClO\)
a)
3Cl2+2Fe--->2FeCl3
FeCl2+Ba(OH)2---->Fe(OH)2+BaCl2
BaCl2+Na2SO4-->BaSO4+2NaCl
2NaCl-----dpdd--> 2Na+Cl2
Cl2+H2O--->HCl+HClO
b)
CaCO3+CO2+H2O-->Ca(HCO3)2
Ca(HCO3)2-->CaCO3+H2O+CO2
CaCO3-->CaO+CO2
CaO+SiO2-->CaSiO2
Chúc bạn học tốt
Cau 1
a)\(2NaCl+2H_2O\rightarrow^{dp}_{cmn}2NaOH+H_2+Cl_2\left(1\right)\)
\(2NaOH+MgSO_4\rightarrow Mg\left(OH\right)_2+Na_2SO_4\left(2\right)\)
\(Mg\left(OH\right)_2\rightarrow^{t^o}MgO+H_2O\left(3\right)\)
\(MgO+2HCl\rightarrow MgCl_2+H_2O\left(4\right)\)
b)\(N_2O\)? Sua lai: \(N_2O\rightarrow Na_2O\)
\(Na_2O+H_2O\rightarrow2NaOH\left(1\right)\)
\(NaOH+HCl\rightarrow NaCl+H_2O\left(2\right)\)
\(2H_2O+2NaCl\rightarrow^{dp}_{cmn}2NaOH+H_2+Cl_2\left(3\right)\)
\(NaOH+CO_2\rightarrow NaHCO_3\left(4\right)\)
Cau 2:
a)\(FeCl_2+2NaOH\rightarrow2NaCl+Fe\left(OH\right)_2\)
b)\(Ba\left(NO_3\right)_2+H_2SO_4\rightarrow BaSO_4\downarrow+HNO_3\)
c)ko pu
d)\(AgNO_3+NaCl\rightarrow AgCl\downarrow+NaNO_3\)
g)ko pu
e)\(2NaOH+H_2SO_4\rightarrow Na_2SO_4+2H_2O\)
1,
2Cu + O2 → 2CuO
CuO + H2SO4 → CuSO4 + H2O
CuSO4 + BaCl2 → CuCl2 + BaSO4
CuCl2 + 2AgNO3 → 2AgCl + Cu(NO3)2
Cu(NO3)2 + 2NaOH → Cu(OH)2 + 2NaNO3
Cu(OH)2 → CuO + H2O
2,
C + O2 → CO2
CO2 + C → 2CO
2CO + O2 → 2CO2
CO2 + NaOH → NaHCO3
2NaHCO3 → Na2CO3 + CO2 + H2O2
Na2CO3 + CaCl2 → 2NaCl + CaCO3
CaCO3 → CaO + CO2
3,
Cl2 + 2H2 → 2HCl
2HCl → 2H2 + Cl2
Cl2 + 2Na → 2NaCl
2NaCl → 2Na + Cl2
Cl2 + 2NaOH → NaClO + NaCl + H2O
NaClO + 2HCl → NaCl + Cl2 + H2O
4,
2H2O → 2H2 + O2
2H2 + O2 → 2H2O
2H2O + Cl2 → 2HClO + 2HCl
2HClO + 2HCl → Cl2 + 2H2O
Cl2 + 2KOH → KCl + KClO
KClO + 2HCl→ 2KCl + H2O
Bài 1: 4Na+O2->2Na2O
(2): Na2O +H2O -> 2NaOH
(3): 2NaOH + BaCl2-> 2NaCl + Ba(OH)2
(4): NaCl + AgNO3-> AgCl + NaNO3
phần 2:
(1) 2NaOH + CO2-> Na2CO3 + H2O
(2) Na2CO3 +CaCl2- > CaCO3 + 2NaCl
(3) CaCO3-t0-> CaO + CO2
(4) CaO +H2O -> Ca(OH)2
(5) Ca(OH)2 + BaCl2-> Ba(OH)2 + CaCl2
Bài 1:
1) 4Na + O2 --to--➢ 2Na2O
Na2O + H2O → 2NaOH
2NaOH + 2HCl → 2NaCl + H2O
NaCl + AgNO3 → NaNO3 + AgCl
2) 2NaOH + CO2 → Na2CO3 + H2O
Na2CO3 + CaCl2 → 2NaCl + CaCO3
CaCO3 --to--➢ CaO + CO2
CaO + H2O → Ca(OH)2
Ca(OH)2 + 2HCl → CaCl2 + 2H2O
\(\text{2Na+2H2O}\rightarrow\text{2NaOH+H2↑}\)
\(\text{2NaOH(đậm đặc)+CO2}\rightarrow\text{Na2CO3+H2O}\)
\(\left\{{}\begin{matrix}\text{CO2+NaOH}\rightarrow\text{NaHCO3}\\\text{H2CO3+NaOH}\rightarrow\text{NaHCO3+H2O}\end{matrix}\right.\)
\(\text{Na2CO3+Ca(OH)2}\rightarrow\text{CaCO3↓+2NaOH}\)
\(\text{CaCO3 + 2HCl → H2O + CO2 + CaCl2}\)
\(\text{CaCl2+Na2CO3}\rightarrow\text{CaCO3↓+2NaCl}\)
\(\text{CaCO3(thể rắn)+CO2+H2O}\rightarrow\text{Ca(HCO3)2(dung dịch pha loãng)}\)
\(\text{Ca(HCO3)2 → CaCO3 + H2O + CO2}\)
\(\text{Ca(HCO3)2 + 2HCl → 2H2O + 2CO2 + CaCl2}\)
\(\text{2Li3PO4+3CaCl2(đậm đặc)}\rightarrow\text{6LiCl↓+Ca3(PO4)2↓}\)
\(\text{NaHCO3+HCl}\rightarrow\text{NaCl+CO2↑+H2O}\)
\(\text{2NaCl+2H2O}\rightarrow\text{H2↑+2NaOH+Cl2↑}\)
\(\left(1\right)Cl_2+2NaOH\rightarrow NaCl+NaClO+H_2O\)
\(\left(2\right)NaClO+2HCl\rightarrow NaCl+H_2O+Cl_2\)
\(\left(3\right)NaClO+CO_2+H_2O\rightarrow NaHCO_3+HClO\)
\(\left(4\right)HClO\underrightarrow{\text{as}}HCl+\frac{1}{2}O_2\)
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