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\(1,CuO+2HCl\rightarrow CuCl2+H2O\)
\(2,K2SO4+Ba\left(OH\right)2\rightarrow B\text{aS}O4\downarrow+2KOH\)
\(3,MgCl2+2NaOH\rightarrow Mg\left(OH\right)2\downarrow+2NaCl\)
\(4,Zn+2AgNO3\rightarrow Zn\left(NO3\right)2+2Ag\)
5, \(2Fe\left(OH\right)3-^{t0}\rightarrow Fe2O3+3H2O\)
\(6,Al2O3+3H2SO4\rightarrow Al2\left(SO4\right)3+3H2O\)
\(7,Ag2O+2HCl\rightarrow2AgCl+H2O\)
\(8,2NaCl+2H2O-\left(ddpddd\left(c\text{ó}-m\text{àng}-ng\text{ă}n\right)\right)\rightarrow2NaOH+H2+Cl2\)
\(9,Na2O+H2O\rightarrow2NaOH\)
\(10,2K+2H2O\rightarrow2KOH+H2\)
1,Fe2O3 + 6HCl-> 2FeCl3 + 3H2O
2,Ca(OH)2 + H2SO4 -> CaSO4 + 2H2O
3,2Al + 6HCl -> 2AlCl3 + 3H2
4,Ba(NO3)2 + K2SO4 -> BaSO4 + 2KNO3
5, FeCl3 + 3KOH -> Fe(OH)3 + 3KCl
6, SO2 + H2O -> H2SO3
7, P2O5 + 6NaOH -> 2Na3PO4 + 3H2O
8, SO3 + 2KOH -> K2SO4 + H2O
9, Al2S3 + 6HCl -> 3H2S + 2AlCl3
10, Ca(HCO3)2 + 2HCl -> CaCl2 + 2CO2 + 2H2O
11, chưa cân bằng xong
12, 2K + 2H2O -> 2KOH + H2
13, Fe3O4 + 8HCl -> 2FeCl3 + FeCl2 + 4H2O
14, Ca(OH)2 + FeSO4 -> CaSO4 + Fe(OH)2
1. \(Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O\)
2. \(Ca\left(OH\right)_2+H_2SO_4\rightarrow CaSO_4+2H_2O\)
3. \(2Al+6HCl\rightarrow2AlCl_3+3H_2\uparrow\)
5. \(FeCl_3+3KOH\rightarrow Fe\left(OH\right)_3\downarrow+3KCl\)
6. \(SO_2+H_2O\rightarrow H_2SO_3\)
7. \(P_2O_5+6NaOH\rightarrow2Na_3PO_4+3H_2O\)
8. \(SO_3+2KOH\rightarrow K_2SO_4+H_2O\)
9. \(Al_2S_3+6HCl\rightarrow3H_2S\uparrow+2AlCl_3\)
12. \(2K+2H_2O\rightarrow2KOH+H_2\uparrow\)
13. \(Fe_3O_4+8HCl\rightarrow2FeCl_3+FeCl_2+4H_2O\)
14. \(Ca\left(OH\right)_2+FeSO_4\rightarrow CaSO_4+Fe\left(OH\right)_2\)
1. Khí Hiđro+Chì(||)oxit---->Chì +nước
H2 + PbO -to-> Pb+ H2O
2. Điphotpho pentaoxit +nước--> axit photphoric
P2O5 + 3 H2O -> 2 H3PO4
3. Magiê+axitClohiđric---> magiê clorua+khí Hiđro.
Mg + 2 HCl -> MgCl2 + H2
4. Natri +nước ----> natri hidroxit+khí hiđro
Na + H2O -> NaOH + 1/2 H2
5. Bari oxit+nước --> bari hidroxit.
BaO + H2O -> Ba(OH)2
6. Kali clorat --> Kali clorua+khí oxi
2 KClO3 -to-> 2 KCl + 3 O2
7. Sắt từ oxit+khí hiđro--->sắt+nước
Fe3O4 + 4 H2 -to-> 3 Fe + 4 H2O
8. Canxi +nước-->canxi hidroxit+khí hiđro
Ca + 2 H2O -> Ca(OH)2 + H2
9. ..............+..........--> Kali oxi.
4 K + O2 -to-> 2 K2O
10. Khí Hiđro+sắt(|||)oxit--->sắt+nước
3 H2 + Fe2O3 -to-> 2 Fe + 3 H2O
11. Kẽm +axit sunfuric--->kẽm sunfat +khí hiđro.
Zn + H2SO4 -> ZnSO4 + H2
12. Lưu huỳnh trioxit +nước-->axit sunfuric.
SO3 + H2O -> H2SO4
Canxi oxit: CaO : 56đvc
Caxi nitrat : Ca(NO3)2:164đvc
Bari hidroxit:Ba(OH)2:171đvc
Bari sunfat:BaSO4 :233đvc
Lưu huỳnh đioxit: SO2 :64đvc
Kali sunfit: K2SO3:158đvc
đồng hidroxit: Cu(OH)2 : 98đvc
Axxit clohidric: HCl :36,5đvc
Kaliclorua:KCl:74,5đvc
axxit sunfuric:H2SO4 :98đvc
Lưu huỳnh trioxit :SO3 :80đvc
Sắt (III) Clorua: FeCl3 :162,5đvc
Bari nitrat:Ba(NO3)2:261đvc
Đồng (II) oxit: CuO :80đvc
Cabonat:CO3 :60đvc
Nhôm sunfat:Al2(SO4)3:342đvc
Natriphotphat: Na3PO4:164đvc
Magie clo rua: MgCl2 :95đvc
Mangan ddioxxit:MnO2:87đvc
Điphotphopentaoxit:P2O5:142đvc
a+b
- CaO = 56 đvC
Ca(NO3)2 = 164 đvC
Ba(OH)2 : 171 đvC
BaSO4 = 233 đvC
SO2 = 64đvC
K2SO3 = 158đvC
Cu(OH)2=98đvC
HCl= 36,5 đvC
KCl = 74,5 đvC
H2SO4 = 98đvC
Tương tự làm tiếp đi nhé
1. 4P + 5O2 ---> 2P2O5
2. 4H2 + Fe3O4 ---> 3Fe + 4H2O
3. 3Ca + 2H3PO4 ---> Ca3(PO4)2 + 3H2
4. CaCO3 + 2HCl ---> CaCl2 + CO2 + H2O
5. Fe + 2HCl ---> FeCl2 + H2
6. Na2O + CO2 ---> Na2CO3
7. MgCO3 ---> MgO + CO2
8. 4Al + 3O2 ---> 2Al2O3
9. Fe + CuSO4 ---> FeSO4 + Cu
a. \(2Al_2O_3\rightarrow4Al+3O_2\)
b. \(Fe+H_2SO_4\rightarrow FeSO_4+H_2\)
c. \(Fe\left(OH\right)_2+H_2SO_4\rightarrow FeSO_4+2H_2O\)
d. \(MgO+2HCl\rightarrow MgCl_2+H_2O\)
thay thành nét liền hộ mình
1. C + O2 ----> CO2
2. Mg + H2SO4 ----> MgSO4 + H2
3. CuO + H2 ----> Cu + H2O
có thêm đk gì bạn tự ghi vào nhé :v
1) \(C+O_2\rightarrow CO_2\)
2) \(Mg+2HCl\rightarrow MgCl_2+H_2\)
3)\(H_2+CuO\rightarrow Cu+H_2O\)
#H
\(1) Mg + 2HCl \to MgCl_2 + H_2\\ 2) Mg(OH)_2 \xrightarrow{t^o} MgO + H_2O\\ 3) BaCl_2 + K_2SO_4 \to BaSO_4 + 2KCl\\ 4) 2H_2 + O_2 \xrightarrow{t^o} 2H_2O\\ 5) CuO + H_2SO_4 \to CuSO_4 + H_2O\\ 6) 2Na + 2H_2O \to 2NaOH + H_2\\ 7) 2Al(OH)_3 + 6HCl \to 2AlCl_3 + 3H_2\\ 8) Fe + S \xrightarrow{t^o} FeS\\ 9) Mg + 2HCl \to MgCl_2 + H_2\\ 10) Ca(OH)_2 + CuSO_4 \to Cu(OH)_2 + CaSO_4\\ 11) Na_2O + 2HNO_3 \to 2NaNO_3 + H_2O\\ 12)CO_2 + 2KOH \to K_2CO_3 + H_2O\)
Bài 2 :
1) \(Mg+2HCl\rightarrow MgCl_2+H_2\)
2) \(Mg\left(OH\right)_2\rightarrow\left(t_o\right)MgO+H_2O\)
3) \(BaCl_2+K_2SO_4\rightarrow BaSO_4+2KCl\)
4) \(2H_2+O_2\rightarrow\left(t_o\right)2H_2O\)
5) \(CuO+H_2SO_4\rightarrow CuSO_4+H_2O\)
6) \(2Na+2H_2O\rightarrow2NaOH+H_2\)
7) \(Al\left(OH\right)_3+3HCl\rightarrow2AlCl_3+3H_2O\)
8) \(2Fe+4S\rightarrow\left(t_o\right)2FeS_2\)
10) \(Ca\left(OH\right)_2+Cu\left(NO_3\right)_2\rightarrow Ca\left(NO_3\right)_2+\)\(Cu\left(OH\right)_2\)
11) \(Na_2O+HNO_3\rightarrow NaNO_3+H_2O\)
12) \(CO_2+2KOH\rightarrow K_2CO_3+H_2O\)
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