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1)2 Na +2H2O---->2NaOH+H2
2)SO2+H2O------->H2SO3
3)SO2+CaO---->CaSO3
4)Fe2O3+6HCl--->2FeCl2_+3H20
5)CO2+Ba(OH)2----->BaCO3+H2O
6)ZnO+h2SO4--->ZnSO4+H2O
7) H20+CaO---->Ca(OH)2
8)H2O+CO2---->H2CO3
9)CaO+CO2--->CaCO3
10) Al2O3 +6HCl--->2AlCl3+3H2O
Chúc bạn học tốt
Nhớ tick cho mk nhé
Bạn tự hoàn thành PTHH nhé!
\(1.\\ X_1:MnO_2\\ X_2:HBr\\ X_3:SO_2\\ X_4:Cl_2\\ X_5:H_2O\\ A_1:H_2S\\ A_2:O_2\\ B_1:Ca\left(OH\right)_2\\ B_2:NH_4NO_3\\ D_1:KMnO_4\\ D_2:H_2SO_4\\ D_3:Na_2SO_3\\ 2.\\ A:HCl\\ B:H_2\\ C:Cl_2\\ D:FeCl_3\\ E:Fe\left(OH\right)_3\\ G:NaCl\\ X:NaOH\)
CaCO3+HCl-->CaCl2+CO2+H2O
CaCl2+Na2CO3-->CaCO3+NaCl
CaCO3-->CaO+CO2
CaO+H2O-->Ca(OH)2
Ca(OH)2+HNO3-->Ca(NO3)2+H2O
E)
Cu+O2-->CuO
CuO+H2-->Cu+H2O
CuO+..->Cu(Oh)2
Cu(Oh)2+HCl-->CuCl2+H2o
G)Na2SO3+CaCL2-->CaSO3+NaCl
S+O2-->SO2
SO2+H2O-->H2SO3
H2SO3+Ca--->CaSO3+H2
CaSO3+HCl-->CaCL2+SO2+H2O
S8+O2-->SO3
SO3+H2O-->H2SO4
H2SO4+Fe2O3-->Fe2(SO4)3+H2
1) Cu + 4HNO3 → Cu(NO3)2 + 2NO2 + 2H2O
2) 2FeO + 4H2SO4 → Fe2(SO4)3 + SO2 + 4H2O
3) Fe3O4 + 10HNO3 → 3Fe(NO3)3 + NO2 + 5H2O
4) 8Fe + 27HNO3 → 8Fe(NO3)3 + 3NH3 + 9H2O
Giải:
a)
S + O2 -t0-> SO2↑
2SO2 + O2 -t0-> 2SO3↑
2SO3 + H2 -> H2SO4 + SO2↑
3H2SO4 + 2Al -> Al2(SO4)3 + 3H2↑
H2 + FeO -> Fe + H2O
3Fe + 2O2 -t0-> Fe3O4
b)
2Ba + O2 -> 2BaO
BaO + H2O -> Ba(OH)2
Ba(OH)2 + 2CO2 = Ba(HCO3)2
a)
\(\left(1\right)S+O_2\underrightarrow{t^o}SO_2\)
\(\left(2\right)SO_2+O_2\underrightarrow{t^o}SO_3\)
\(\left(3\right)SO_3+H_2O\rightarrow H_2SO_4\)
\(\left(4\right)2K+H_2SO_4\rightarrow K_2SO_4+H_2\uparrow\)
\(\left(5\right)FeO+H_2\rightarrow Fe+H_2O\)
\(\left(6\right)3Fe+2O_2\underrightarrow{t^o}Fe_3O_4\)
\(b.\)
\(\left(1\right)2Ba+O_2\underrightarrow{t^o}2BaO\)
\(\left(2\right)BaO+H_2O\rightarrow Ba\left(OH\right)_2\)
\(\left(3\right)Ba\left(OH\right)_2+CO_2\rightarrow Ba\left(HCO_3\right)_2\)
a, (1) S + O2 \(\underrightarrow{t^o}\) SO2
(2) SO2 + \(\dfrac{1}{2}\)O2 \(\underrightarrow{V_2O_5}\) SO3
(3) SO3 + H2O -> H2SO4
(4) H2SO4 + 2Na -> Na2SO4 + H2
(5) Na2SO4 + BaCl2 -> BaSO4 + 2NaCl
b, (1) không tìm được chất phù hợp
(2) không tìm được chất phù hợp
(3) SO2 + \(\dfrac{1}{2}\)O2 \(\underrightarrow{V_2O_5}\) SO3
(4) SO3 + H2O -> H2SO4
(5) H2SO4 + BaCl2 -> BaSO4 + 2HCl
1)K2O+H2O ->.2KOH
.kali.oxit . .kali.hidroxit ..
2)Cu(OH)2->CuO+H2O
.đồng(II).hidroxit đồngoxit..
3)SO2+H2O->H2SO3
lưu huỳnh đioxit axit sunfua rơ
4)Mg(OH)2+H2SO4->MgSO4+2H2O
magie.hidroxit....axit sunfuaric magie sunfat
5)CuSO4+2NaOH->Cu(OH)2+Na2SO4
đồng sunfat natri hidroxit đồng (II)oxit natrisunfat
6)AgNO3+HCl->AgCl+HNO3
.bạc nitrat axit clohidric bạc clorua axit nitric
7)H2SO4+ZnO->ZnSO4+H2O
axit sunfuaric kẽm oxit kẽm sunfat
2FeS2+6O2-->Fe2O3+4SO2
2SO2+O2-->2SO3(V2O5,to)
SO3+H2O-->H2SO4
b)2Na+2H2O-->2NaOH+H2
2NaOH+H2SO4-->Na2SO4+2H2O
Na2SO4+Ba(OH)2-->BaSO4+2NaOH
2NaOH+CO2-->Na2CO3+H2O
Na2CO3+2HCl-->2NaCl+H2O+CO2
NaCl+AgNO3-->NaNO3+AgCl
C)
4Al+3O2-->2AL2O3
Al2O3+3H2SO4-->Al2(SO4)3+3H2O
Al2(SO4)3+3Ba(OH)2-->3BaSO4+2Al(OH)3
Al(OH)3+NaOH-->NaAlO2+H2O
NaALO2+H2O+CO2-->Al(OH)3+NaHCO3
Al(OH)3+HCl-->AlCl3+H2O
AlCl3+AgNO3-->Al(NO3)3+AgCl
a) 2FeS2 +11/2O2-----> 4SO2 +Fe2O3
2SO2+O2------> 2SO3
SO3+H2O----- -> H2SO4.
b) 2Na +2H2O-----> 2NaOH+H2
2NaOH+H2SO4----> Na2SO4 +2H2O
Na2SO4+Ba(OH)2----> NaOH +BaSO4
2NaOH+CO2----> Na2CO3+H2O
Na2CO3+2HCl----> 2NaCl+H2O+CO2
NaCl+AgNO3--->NaNO3+AgCl
c) 4Al+3O2--- -> 2Al2O3
Al2O3+3H2SO4 -> Al2(SO4)3+3H2O
Al2(SO4)3+6NaOH-> 2Al(OH)3+3Na2SO4
Al(OH)2+NaOH ----> NaAlO2+2H2O
NaAlO2+2H2O+CO2----> Al(OH)3 +NaHCO3
Al(OH)3+3NaOH----> AlCl3+3NaOH
Alcl3+3AgNO3---> Al(NO3)3+3NaCl
a.
2Al +3 H2SO4=> Al2(SO4)3 + 3H2
Al2(SO4)3 + 6NaOH=> 3Na2SO4 + 2Al(OH)3
Al(OH)3 + 3HCl=> AlCl3 + 3H2O
b.
2fe + 3Cl2=>2 FeCl3
FeCl3 +3 NaOH=> 3NaCl + Fe(OH)3
2Fe(OH)3 => Fe2O3 + 3H2O
Fe2O3 + 6HCl=> 2FeCl3 + 3H2O
c.
CaCO3 => CaO + CO2
CaO + H2O=> Ca(OH)2
Ca(OH)2 + 2HCl=> CaCl2 + 2H2O
CaCl2 + 2AgNO3 => 2AgCl+ Ca(NO3)2
1) 2Cu + O2 -to-➢ 2CuO
CuO + 2HCl → CuCl2 + H2O
CuCl2 + 2NaOH → Cu(OH)2 + 2NaCl
2) S + H2 -to-➢ H2S
3) S + O2 -to-➢ SO2
2SO2 + O2 -to-➢ 2SO3
SO3 + H2O → H2SO4
H2SO4 + 2KOH → K2SO4 + 2H2O
4) S + Fe -to-➢ FeS
bạn tự cân bằng nha
a)\(Ca\left(OH\right)_2\)
b)\(Mg\left(OH\right)_2\)
c)\(K_2SO_3+H_2O\)
d)\(HNO_2\)
e)\(CuSO_4+H_2O\)
f)\(FeCl_2+H_2O\)
g) pt không xảy ra
h)\(KNO_2\)
a) `CaO+H2O -> Ca(OH)_2`
b) `MgO+H2O ->Mg(OH)_2`
c) `SO2+KOH ->KHSO_3`
d) `N2O3+H2O ->2HNO_2`
e) SO3+Cu(OH)2 -> không phản ứng
f) `FeO+2HCl ->FeCl_2+H_2O`