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\(2NaCl\underrightarrow{\text{điện phân nóng chảy}}2Na+Cl_2\uparrow\\ H_2+Cl_2\underrightarrow{\text{ánh sáng}}2HCl\\ Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O\\ FeCl_3+3NaOH\rightarrow Fe\left(OH\right)_3\downarrow+3NaCl\)
a)
\(KNO_3\underrightarrow{t^o}KNO_2+\dfrac{1}{2}O_2\uparrow\)
\(Fe+\dfrac{1}{2}O_{2\left(thiếu\right)}\underrightarrow{t^o}FeO\)
\(6FeO+O_2\underrightarrow{t^o}2Fe_3O_4\)
\(4Fe_3O_4+O_2\underrightarrow{t^o}6Fe_2O_3\)
\(Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O\)
b)
\(KClO_3\underrightarrow{t^o}KCl+\dfrac{3}{2}O_2\uparrow\)
\(O_2+C\underrightarrow{t^o}CO_2\)
\(CO_2+CaO\rightarrow CaCO_3\)
\(CaCO_3+2HCl\rightarrow CaCl_2+H_2O+CO_2\uparrow\)
\(CaCl_2+2AgNO_3\rightarrow Ca\left(NO_3\right)_2+2AgCl\downarrow\)
\(Ca\left(NO_3\right)_2\underrightarrow{t^o}Ca\left(NO_2\right)_2+O_2\uparrow\)
c)
\(2Al_2O_3\xrightarrow[đp]{criolit}4Al+3O_2\uparrow\)
\(O_2+P\underrightarrow{t^o}P_2O_5\)
\(P_2O_5+3H_2O\rightarrow2H_3PO_4\)
\(2H_3PO_4+3Cu\left(OH\right)_2\rightarrow Cu_3\left(PO_4\right)_2+6H_2O\)
d)
\(FeS+2HCl\rightarrow FeCl_2+H_2S\uparrow\)
\(H_2S+\dfrac{1}{2}O_2\rightarrow S+H_2O\)
\(S+4Na\underrightarrow{t^o}2Na_2S\)
\(Na_2S+ZnCl_2\rightarrow2NaCl+ZnS\downarrow\)
\(ZnS+MgSO_4\rightarrow MgS\downarrow+ZnSO_4\)
\(\)
\(a,HCl+Al\left(NO_3\right)_3:Khộng.phản.ứng\\ c,NaCl+H_2SO_{4\left(loãng\right)}:Không.phản.ứng\\ b,SiO_2+4HF\rightarrow SiF_4+2H_2O\\ d,MgCO_3+2HCl\rightarrow MgCl_2+CO_2+H_2O\\ e,3Cl_2+6KOH_{dung.dịch}\rightarrow\left(đ,t^o\right)5KCl+KClO_3+3H_2O\\ g,2Cl_2+2Ba\left(OH\right)_{2\left(dung.dịch\right)}\rightarrow\left(đ,t^o\right)BaCl_2+Ba\left(ClO\right)_2+2H_2O\\ h,2KMnO_4+16HCl\rightarrow\left(đ,t^o\right)2KCl+2MnCl_2+5Cl_2+8H_2O\\ i,SiO_2+HCl:Không.p.ứ\\ k,Fe_3O_4+8HCl\rightarrow2FeCl_3+FeCl_2+4H_2O\\ l,2FeCl_2+Cl_2\rightarrow2FeCl_3\\ c,FeCl_2+H_2SO_{4\left(loãng\right)}:Không.p.ứ\\ m,MnO_2+4HCl\rightarrow\left(đ,t^o\right)MnCl_2+Cl_2+2H_2O\)
\(x,KHCO_3+HCl\rightarrow KCl+CO_2+H_2O\\ y,2Fe+3Br_2\rightarrow2FeBr_3\\ z,4HBr_{đ,n}+MnO_2\rightarrow MnBr_2+Br_2+2H_2O\)
a)HCl + Al(NO3)3 (không phản ứng)
b) SiO2+ 4HF -> SiF4 + 2H2O
c) NaCl + H2SO4 loãng (không phản ứng)
d) MgCO3 + 2HCl -> MgCl2 + CO2 + H2O
f) 3Cl2 + 6KOH ( dung dịch) \(\underrightarrow{t^o}\) 5KCl + KClO3 + 3H2O
g) 2Cl2 + 2Ba(OH)2 ( dung dịch) -> BaCl2 + Ba(ClO)2 + 2H2O
h) 2KMnO4 + 16HCl -> 2KCl + 2MnCl2 + 5Cl2 + 8H2O
i) SiO2+ 4HCl -> SiCl4 + 2H2O
k) Fe3O4+ 8HCl \(\underrightarrow{t^o}\) 2FeCl3 + FeCl2 + 4H2O
l) 2FeCl2 + Cl2 -> 2FeCl3
n) FeCl2 + H2SO4 loãng (không phản ứng)
m) MnO2 + 4HCl \(\underrightarrow{t^o}\) MnCl2 + Cl2 + 2H2O
x) KHCO3 + HCl -> KCl + CO2 + H2O
y) 2Fe + 3Br2 --(đun sôi)--> 2FeBr3
z) 4HBr + MnO2 -> MnBr2 + Br2 + 2H2O
1/ \(H_2+S\underrightarrow{t^o}H_2S\)
\(S+Cl_2\underrightarrow{t^o}SCl_2\)
\(S+O_2\underrightarrow{t^o}SO_2\)
\(Hg+S\rightarrow HgS\)
\(Al+S\underrightarrow{t^o}Al_2S_3\)
\(Zn+S\underrightarrow{t^o}ZnS\)
\(Fe+S\underrightarrow{t^o}FeS\)
\(Ag+S\underrightarrow{t^o}Ag_2S\)
\(S+6HNO_{3\left(đ\right)}\rightarrow H_2SO_4+6NO_2+2H_2O\)
2/ \(FeS+2HCl\rightarrow FeCl_2+H_2S\)
\(2H_2S+O_2\rightarrow2H_2O+2S\)
\(S+Na\underrightarrow{t^o}Na_2S\)
\(Na_2S+Zn\left(NO_3\right)_2\rightarrow2NaNO_3+ZnS_{\downarrow}\)
\(ZnS+H_2SO_4\rightarrow ZnSO_4+H_2S\)
Bạn tham khảo nhé!
Câu 2:
\(3Cl_2+6KOH\underrightarrow{t^o}5KCl+KClO_3+3H_2O\)
\(2KClO_3\underrightarrow{t^o}2KCl+3O_2\uparrow\)
\(KCl_{\left(r\right)}+H_2SO_{4\left(đ/n\right)}\rightarrow KHSO_4+HCl\uparrow\)
\(MnO_2+4HCl\underrightarrow{t^o}MnCl_2+Cl_2\uparrow+2H_2O\)
\(Ca+Cl_2\rightarrow CaCl_2\)
\(CaCl_2+2AgNO_3\rightarrow Ca\left(NO_3\right)_2+2AgCl\downarrow\)
Câu 3:
\(2KMnO_4+16HCl\rightarrow2MnCl_2+2KCl+5Cl_2\uparrow+8H_2O\)
\(H_2+Cl_2\underrightarrow{as}2HCl\)
\(Fe+2HCl\rightarrow FeCl_2+H_2\uparrow\)
\(FeCl_2+2NaOH\rightarrow Fe\left(OH\right)_2\downarrow+2NaCl\)
\(NaCl_{\left(r\right)}+H_2SO_{4\left(đ/n\right)}\rightarrow NaHSO_4+HCl\uparrow\)
\(CuO+2HCl\rightarrow CuCl_2+H_2O\)
\(CuCl_2+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl\downarrow\)
\(2AgCl\underrightarrow{as}2Ag+Cl_2\uparrow\)
Câu 2:
\(\left(1\right)3Cl_2+6KOH\overset{t^o}{--->}5KCl+KClO_3+3H_2O\)
\(\left(2\right)2KClO_3\overset{t^o}{--->}2KCl+3O_2\uparrow\)
\(\left(3\right)\cdot\cdot\cdot\cdot\cdot\cdot\cdot\)
\(\left(4\right)4HCl+MnO_2--->MnCl_2+2H_2O+Cl_2\uparrow\)
\(\left(5\right)Cl_2+Ca\overset{t^o}{--->}CaCl_2\)
\(\left(6\right)CaCl_2+2AgNO_3--->Ca\left(NO_3\right)_2+2AgCl\downarrow\)
\(2NaCl\rightarrow2Na+Cl_2\)
\(Cl_2+H_2\rightarrow2HCl\)
\(6HCl+2Fe\left(OH\right)_3\rightarrow2FeCl_3+3H_2O\)
Bài 1 :
\(NaCl + H_2SO_{4_{đặc}} \xrightarrow{t^o} NaHSO_4 + HCl\\ MnO_2 + 4HCl \to MnCl_2 + Cl_2 + 2H_2O\\ Cl_2 + SO_2 + 2H_2O \to 2HCl + H_2SO_4\\ Cu + 2H_2SO_4 \to CuSO_4 + SO_2 + 2H_2O\)
Hoàn thành các phương trình phản ứng xảy ra (nếu có, ghi rõ điều kiện)
1) 3Cl2 + 2Fe →to->...2FeCl3........
2) 2Cl2 + 2H2O → .....4HCl + O2.......
3) Cl2 + 2NaOH → ....NaClO + NaCl + H20.....
4) Fe + .....2HCl..... → FeCl2 + ......H2.......
5) 3HCl + Fe(OH)3→......FeCl3 + 3H20.............
6) KCl + AgNO3→........AgCl + KNO3................
7) 2HCl + CaCO3 →.........CaCl2 + H2CO3..............
\(2KMnO_4+16HCl\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\)
\(Cl_2+H_2\underrightarrow{as}2HCl\)
\(2HCl+Mg\rightarrow MgCl_2+H_2\)
\(MgCl_2+2AgNO_3\rightarrow2AgCl+Mg\left(NO_3\right)_2\)