Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
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
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
\(1,CuO+2HCl\rightarrow CuCl2+H2O\)
\(2,K2SO4+Ba\left(OH\right)2\rightarrow B\text{aS}O4\downarrow+2KOH\)
\(3,MgCl2+2NaOH\rightarrow Mg\left(OH\right)2\downarrow+2NaCl\)
\(4,Zn+2AgNO3\rightarrow Zn\left(NO3\right)2+2Ag\)
5, \(2Fe\left(OH\right)3-^{t0}\rightarrow Fe2O3+3H2O\)
\(6,Al2O3+3H2SO4\rightarrow Al2\left(SO4\right)3+3H2O\)
\(7,Ag2O+2HCl\rightarrow2AgCl+H2O\)
\(8,2NaCl+2H2O-\left(ddpddd\left(c\text{ó}-m\text{àng}-ng\text{ă}n\right)\right)\rightarrow2NaOH+H2+Cl2\)
\(9,Na2O+H2O\rightarrow2NaOH\)
\(10,2K+2H2O\rightarrow2KOH+H2\)
a, Fe2O3 + 3H2 \(\rightarrow\) 2Fe + 3H2O
b, SO3 + H2O \(\rightarrow\) H2SO4
c, 2Al + Fe2O3 \(\rightarrow\) 2Fe + Al2O3
d, CaO + H2O \(\rightarrow\) Ca(OH)2
e, K + H2O \(\rightarrow\) KOH + H2 \(\uparrow\)
f, Zn + H2SO4 \(\rightarrow\) ZnSO4 + H2 \(\uparrow\)
a.Fe2O3+3H2=2Fe+3H2O
b.SO3+H2O=H2SO4
c.2Al+Fe2O3=2Fe+Al2O3
d.CaO+H2O=Ca(OH)2
e.2K+2H2O=2KOH+H2
f.Zn+H2SO4=ZnSO4+H2
Sủa đề:
a, CanxiCanbonat -> CanxiOxit + Khí Cacbonnic.
b, CanxiClorua + Bạc Nitrat -> Bạc Clorua+ Canxinitrat
c, NatriHidroxit + Sắt(III) Sunfat -> Natrisunfat + Sắt (III) Hidroxit
d, Axitsunfuric+ BariClorua -> BariSunfat + AxitCloHidric
e, Nhôm Hidroxit -> Nhôm Oxit+ Nước
CaCO3 \(\rightarrow\)CaO + CO2
CaCl2 + 2AgNO3\(\rightarrow\)2AgCl + Ca(NO3)2
6NaOH + Fe2(SO4)3\(\rightarrow\)3Na2SO4 + 2Fe(OH)3
H2SO4 + BaCl2 \(\rightarrow\)BaSO4 + 2HCl
2Al(OH)3 \(\rightarrow\)Al2O3 + 3H2O
a) \(PTHH:CaCO_3\rightarrow CaO+CO_2\)
b)\(PTHH:CaCl_2+2AgNO_3\rightarrow2AgCl+Ca\left(NO_3\right)_2\)
e)\(PTHH:2Al\left(OH\right)_3\rightarrow Al_2O_3+3H_2O\)
a) natri hidroxit + sắt(III)clorua →sắt(III)hidroxit + natri clorua
3 NaOH + FeCl3 → Fe(OH)3 + 3 NaCl
b) canxi hidroxit + nhôm nitrat → nhôm hidroxit + canxi nitrat
3 Ca(OH)2 + 2 Al(NO3)3 → 2 Al(OH)3 + 3 Ca(NO3)2
c) axit sunfuric + bari hidroxit → bari sunfat + nước
H2SO4 + Ba(OH)2 → BaSO4 + 2 H2O
d) Axit sunfuric + Canxi cacbonat → canxi sunfat + khí cacbon dioxit+ nước
H2SO4 + CaCO3 → CaSO4 + CO2 + H2O
e) nito + oxi → đi nito penta oxit
2 N2 + 5 O2 → 2 N2O5 [Thêm điều kiện to ở phản ứng này nữa nha]
1) 2H2 + O2 \(\underrightarrow{to}\) 2H2O
2) 2Fe + 3Cl2 \(\underrightarrow{to}\) 2FeCl3
3) 4P + 5O2 \(\underrightarrow{to}\) 2P2O5
4) 2Cu + O2 \(\underrightarrow{to}\) 2CuO
5) P2O5 + 3H2O → 2H3PO4
6) Fe + 2HCl → FeCl2 + H2
7) 2Al + 6HCl → 2AlCl3 + 3H2
8) Ba + O2 \(\underrightarrow{to}\) BaO
9) 2Fe(OH)3 \(\underrightarrow{to}\) Fe2O3 + 3H2O
10) 2Fe + 3Br2 \(\underrightarrow{to}\) 2FeBr3
11) 2Na + 2H2O → 2NaOH + H2
12) Fe + 2HCl → FeCl2 + H2
13) Cu + 2AgNO3 → Cu(NO3)2 + 2Ag
Câu 1:
1. 4Fe + 3O2 \(\underrightarrow{to}\) 2Fe2O3
2. Fe2O3 + 3H2SO4 → Fe2(SO4)3 + 3H2O
3. Fe2(SO4)3 + 6NaOH → 3Na2SO4 + 2Fe(OH)3
4. 2Fe(OH)3 \(\underrightarrow{to}\) Fe2O3 + 3H2O
5. Fe2O3 + 3H2 \(\underrightarrow{to}\) 2Fe + 3H2O
Câu 2:
1. 4Na + O2 → 2Na2O
2. Na2O + H2O → 2NaOH
3. 2NaOH + H2SO4 → Na2SO4 + 2H2O
4. Na2SO4 + BaCl2 → 2NaCl + BaSO4