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H2SO4\(\rightarrow\)HCl\(\rightarrow\)SO2\(\rightarrow\)S03
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\(C+O_2\underrightarrow{t^o}CO_2\)
\(CO_2+CaO\rightarrow CaCO_3\)
\(CaCO_3+2HCl\rightarrow CaCl_2+CO_2+H_2O\)
\(CaCl_2+2AgNO_3\rightarrow Ca\left(NO_3\right)_2+2AgCl_{\downarrow}\)
Bạn tham khảo nhé!
\(C+O_2\underrightarrow{t^0}CO_2\)
\(CO_2+Ca\left(OH\right)_2\rightarrow CaCO_3+H_2O\)
\(CaCO_3+2HCl\rightarrow H_2O+CO_2+CaCl_2\)
\(CaCl_2+2AgNO_3\rightarrow2AgCl+Ca\left(NO_3\right)_2\)
1/
MnO2+ 4HCl\(\rightarrow\) MnCl2+ Cl2+ 2H2O
Cl2+H2\(\xrightarrow[]{as}\) 2HCl
HCl+ NaOH\(\rightarrow\) NaCl+ H2O
2NaCl\(\xrightarrow[]{đpnc}\) 2Na+ Cl2
Cl2+ SO2+ 2H2O\(\rightarrow\) H2SO4+ 2HCl
H2SO4 đặc+ NaCltinh thể\(\xrightarrow[]{< 250\cdot C}\) NaHSO4+ HCl
4/
H2SO4 đặc+ NaCltinh thể\(\xrightarrow[]{< 250\cdot C}\) NaHSO4+ HCl
MnO2+ 4HCl\(\rightarrow\) MnCl2+ Cl2+ 2H2O
3Cl2+ 6KOHđặc\(\rightarrow\) KClO3+ 5KCl+ 3H2O
2KClO3\(\xrightarrow[MnO2]{to}\) 2KCl+ 3O2
2KCl\(\xrightarrow[]{đpnc}\) K+ Cl2
Cl2+ Ca(OH)2\(\xrightarrow[]{30\cdot C}\) CaOCl2+ H2O
1, \(MnO_2+4HCl\underrightarrow{t^o}MnCl_2+Cl_2+2H_2O\)
\(Cl_2+H_2\underrightarrow{as,t^o}2HCl\)
\(HCl+NaOH\rightarrow NaCl+H_2O\)
\(2NaCl+2H_2O\xrightarrow[cmn]{đpdd}2NaOH+Cl_2+H_2\)
\(4Cl_2+4H_2O+H_2S\rightarrow H_2SO_4+8HCl\)
\(H_2SO_4+NaCl\underrightarrow{>400^oC}Na_2SO_4+HCl\uparrow\)
2, \(2KMnO_4+18HCl\rightarrow2KCl+2MnCl_2+5Cl_2+8H_2O\)
\(3Cl_2+2Fe\underrightarrow{t^o}2FeCl_3\)
\(FeCl_3+3KOH\rightarrow Fe\left(OH\right)_3\downarrow+3KCl\)
\(2KCl+2H_2O\xrightarrow[cmn]{đpdd}2KOH+Cl_2+H_2\)
3, \(4HCl+MnO_2\underrightarrow{t^o}MnCl_2+Cl_2+2H_2O\)
\(3Cl_2+2Fe\underrightarrow{t^o}2FeCl_3\)\(FeCl_3+3NaOH\rightarrow3NaCl+Fe\left(OH\right)_3\downarrow\)
\(2NaCl+H_2SO_4\underrightarrow{>400^oC}Na_2SO_4+2HCl\)
\(2HCl+Cu\left(OH\right)_2\rightarrow CuCl_2+2H_2O\)
\(CuCl_2+2AgNO_3\rightarrow Cu\left(NO_3\right)_2+2AgCl\downarrow\)
4, \(H_2SO_4+2NaCl\underrightarrow{>400^oC}Na_2SO_4+2HCl\uparrow\)
\(4HCl+MnO_2\underrightarrow{t^o}MnCl_2+Cl_2+2H_2O\)
\(3Cl_2+6KOH\underrightarrow{80-100^oC}5KCl+KClO_3+3H_2O\)
\(2KClO_3\underrightarrow{t^o}2KCl+3O_2\)
\(2KCl+2H_2O\xrightarrow[cmn]{đpdd}2KOH+Cl_2+H_2\)
\(Cl_2+Ca\left(OH\right)_2\underrightarrow{30^oC}CaOCl_2+H_2O\)
Bạn tham khảo nhé!
a)
\(2KClO_3 \xrightarrow{t^o} 2KCl + 3O_2(X)\\ 3O_2 + 4Al \xrightarrow{t^o} 2Al_2O_3(Y)\\ Al_2O_3 + 6HCl \to 2AlCl_3(Z) + 3H_2O\\ AlCl_3 + 3KOH \to Al(OH)_3(T) + 3KCl\\ 2Al(OH)_3 + 3H_2SO_4 \to Al_2(SO_4)_3 + 3H_2O\\ \)
b)
\(2KMnO_4 \xrightarrow{t^o} K_2MnO_4 + MnO_2 + O_2(A)\\ 2H_2 + O_2 \xrightarrow{t^o} 2H_2O\\ 2H_2O + 2Na \to 2NaOH(B) + H_2\\ 2NaOH \xrightarrow{đpnc} Na + O_2 + H_2 CuO + H_2 \xrightarrow{t^o} Cu(C) + H_2O\)
A: O2 B: Al2O3 C: AlCl3 D: Al(OH)3
2KClO3-to-->2KCl+3O2
3O2+4Al--->2Al2O3
Al2O3+6HCl--->2AlCl3+3H2O
AlCl3+3NaOH--->Al(OH)3+3NaCl
2Al(OH)3+3H2SO4--->Al2(SO4)3+6H2O
b> 2
KMnO4to→K2MnO4+MnO2+O22KMnO4to→K2MnO4+MnO2+O2
O2+2H2to→2H2OO2+2H2to→2H2O
H2O+SO3→H2SO4H2O+SO3→H2SO4
Fe+H2SO4→FeSO4+H2Fe+H2SO4→FeSO4+H2
2H2+CO2
a) 4FeS2+11O2\(\overset{t^0}{\rightarrow}\)2Fe2O3+8SO2
2SO2+O2\(\overset{V_2O_5,t^0}{\rightarrow}2SO_3\)
SO3+H2O\(\rightarrow\)H2SO4
Cu+ 2H2SO4đ\(\overset{t^0}{\rightarrow}\)CuSO4+SO2+H2O
b)
AlCl3+3NaOH\(\rightarrow\)Al(OH)3+3NaCl
2Al(OH)3\(\overset{t^0}{\rightarrow}Al_2O_3+3H_2O\)
Al2O3+3H2SO4\(\rightarrow\)Al2(SO4)3+3H2O
Al2(SO4)3+3BaCl2\(\rightarrow\)3BaSO4+2AlCl3
a)\(4Al+3O_2\underrightarrow{t^o}2Al_2O_3\)
\(Al_2O_3+6HCl\rightarrow2AlCl_3+3H_2O\)
\(2AlCl_3+3Ba\left(OH\right)_2\rightarrow2Al\left(OH\right)_3\downarrow+3BaCl_2\)
\(2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\)
\(2Al+3S\underrightarrow{t^o}Al_2S_3\)
1, (1) 4Al+ 3O2--(to)---> 2Al2O3
(2) Al2O3+6HCl---> 2AlCl3+ 3H2O
(3) AlCl3+3NaOH---->Al(OH)3+ 3NaCl
(4) 2Al(OH)3---(to)---> Al2O3+ 3H2O
(5)2Al2O3---(to+ đpnc)--> 4Al+ 3O2
(6) 2Al+ 3Cl2---> 2AlCl3
2, (1)Fe+ CuSO4-->Cu+ FeSO4
(2) FeSO4+ 2NaOH--> Fe(OH)2+ Na2SO4
(3) Fe(OH)2 +2HCl---> FeCl2+ 2H2O
Bài cuối tự làm nhé!
H2SO4 đặc + 2NaCl rắn \(\underrightarrow{t^o}\) 2HCl + Na2SO4
2HCl + CaSO3 → CaCl2 + SO2 + H2O
2SO2 + O2 \(\underrightarrow{t^o,xt}\) 2SO3
Dạ cô cho em cảm ơn ạ.