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\(4Al+3O_2\underrightarrow{t^o}2Al_2O_3\)
\(4K+O_2\rightarrow2K_2O\)
\(2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\)
\(Al_2O_3+6HCl\rightarrow2AlCl_3+3H_2O\)
\(CaCl_2+Fe\left(OH\right)_3\rightarrow\) Không phản ứng
\(BaCl_2+H_2SO_4\rightarrow2HCl+BaSO_4\downarrow\)
\(4P+5O_2\rightarrow\left(t^o\right)2P_2O_5\\ Ca\left(OH\right)_2+CO_2\rightarrow CaCO_3\downarrow+H_2O\\ 2K+2H_2O\rightarrow2KOH+H_2\uparrow\\ Fe+2HCl\rightarrow FeCl_2+H_2\uparrow\\ 2Al+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2\uparrow\\ Fe+S\rightarrow\left(t^o\right)FeS\\ 2Al\left(OH\right)_3\rightarrow\left(t^o\right)Al_2O_3+3H_2O\\ 2HgO\rightarrow\left(450^oC-500^oC\right)2Hg+O_2\uparrow\\ CuCl_2+2KOH\rightarrow Cu\left(OH\right)_2\downarrow+2KCl\\ Cu\left(OH\right)_2\rightarrow\left(t^o\right)CuO+H_2O\)
1. `4P + 5O_2 -> 2P_2O_5`
2.`Ca(OH)_2 + CO_2 -> CaCO_3 \downarrow + H_2O`
3. `2K +2 H_2O -> 2KOH + H_2 \uparrow`
4. `Fe + 2HCl -> FeCl_2 + H_2 \uparrow`
5. `2Al + 3H_2SO_4 -> Al_2(SO_4)_3 + 3H_2 \uparrow`
6. `Fe + S -> FeS`
7. `2Al(OH)_3 -> Al_2O_3 + 3H_2O`
8. `2HgO -> 2Hg + O_2 \uparrow`
9. `CuCl_2 + 2KOH -> Cu(OH)_2\downarrow + 2KCl`
10. `Cu(OH)_2 ->CuO + H_2O`
1.
| 2Fe+2 ---> 2Fe+3 + 1e | x1 |
| S+6 + 2e ---> S+4 | x1 |
2FeO + 4H2SO4 ---> Fe2(SO4)3 + SO2 + 4H2O
2.
| 2Fe+2 ---> 2Fe+3 + 2e | x1 |
| S+6 + 2e ---> S+4 | x1 |
2FeCO3 + 4H2SO4 ---> Fe2(SO4)3 + 2CO2 + SO2 + 4H2O
3.
| 2Fe+2 ---> 2Fe+3 + 2e | x1 |
| S+6 + 2e ---> S+4 | x1 |
2FeSO4 + 2H2SO4 ---> Fe2(SO4)3 + SO2 + 2H2O
4.
| 2Fe+2 ---> 2Fe+3 + 2e | x4 |
| S+6 + 8e ---> S-2 | x1 |
8Fe(OH)2 + 13H2SO4 ---> 4Fe2(SO4)3 + H2S + 20H2O
5.
| Al0 ---> Al+3 + 3e | x10 |
| 2N+5 ---> 2N0 | x3 |
10Al + 36HNO3 ---> 10Al(NO3)3 + 3N2 + 18H2O
\(Fe+2HCl\rightarrow FeCl_2+H_2\)
\(2Al+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2\)
\(CuO+H_2SO_4\rightarrow CuSO_4+H_2O\)
\(2Al\left(OH\right)_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+6H_2O\)
\(CuO+2HNO_3\rightarrow Cu\left(NO_3\right)_2+H_2O\)
1. Fe + 2HCl → FeCl2 + H2
2Al + 3H2SO4 → Al2(SO4)3 + 3H2
CuO + H2SO4 → CuSO4 + H2O
2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O
CuO + 2HNO3 → Cu(NO3)2 + H2O
BaO+H2O--->Ba(OH)2
SO2+Ba(OH)2--->BaSO3+H2O
H2SO4+BaCl2--->BaSO4+2HCl
Al2O3+6HCl--->2AlCl3+3H2O
Fe+2HCl--->FeCl2+H2
6NaOH+Al2(SO4)3--->2Al(OH)3+3Na2SO4
BaO+CO2--->BaCO3
Fe(OH)3+3HCl--->FeCl3+3H2O
Mg(OH)2--->MgO+H2O
Fe3O4+8HCl--->FeCl2+2FeCl3+4H2O
2Al(OH)3+3H2SO4--->Al2(SO4)3+6H2O
2Al(OH)3--->Al2O3+3H2O
2NaOH+CO2--->Na2CO3+H2O
Na2CO3+2HCl--->2NaCl+CO2+H2O
Na2SO4+BaCl2--->BaSO4+2NaCl
CaCO3--->CaO+CO2
2NaOH+2Al+2H2O--->2NaAlO2+3H2
NaCl+AgNO3--->AgCl+NaNO3
2NaOH+Al2O3--->2NaAlO2+H2O
Fe+2AgNO3--->Fe(NO3)2+2Ag
(NH4)2SO4+2NaOH--->Na2SO4+2NH3+2H2O
Al(OH)3+NaOH--->NaAlO2+2H2O
2NaOH+Zn(OH)2--->Na2ZnO2+2H2O
Na2SO3+2HCl--->2NaCl+SO2+H2O
cac bạn ơi dấu bằng ong rồi cách ra làm cái khác nhé ình viết sai
chỉ có phần chất tham gia phản ứng thôi
1. 4Na + O2 --- > 2Na2O
2. 2 Al + 3S --- > Al2S3
3. 2Fe(OH)3 + 6HCl --- > 2FeCl3 + 6H2O
4. Fe2O3 + 3H2SO4 --- > Fe2(SO4)3 + 3H2O
5 . 2NaOH + Cu(NO3)2 --- > 2NaNO3 + Cu(OH)2
6 . 4P + 5O2 --- > 2P2O5
1) C4H10 + \(\dfrac{13}{2}\)O2 \(\underrightarrow{to}\) 4CO2 + 5H2O
2) 6NaOH + Fe2(SO4)3 → 3Na2SO4 + 2Fe(OH)3↓
3) 4FeS2 + 11O2 \(\underrightarrow{to}\) 2Fe2O3 + 8SO2
4) 6KOH + Al2(SO4)3 → 3K2SO4 + 2Al(OH)3↓
5) 2CH4 + O2 + 2H2O → 2CO2 + 6H2
6) 8Al + 3Fe3O4 → 4Al2O3 + 9Fe
<p font-family:times="" new="" roman,serif;="" font-size:14.0pt;="" line-height:115%"="">1. CaCO3 --to--> CaO + CO2
2. MgCl2 +2 KOH → Mg(OH)2 +2 KCl
3. Cu(OH)2 +2 HCl → CuCl2 + 2H2O
4. P2O5 + 3H2O ----> 2 H3PO4
5. 4P +5 O2 to→ 2P2O5
6. 2Al + 3 H2SO4 ----> Al2(SO4)3 + 3H2
7. Zn + 2 HCl ----> ZnCl2 + H2
8. N2 + O2 to→ 2NO
9. 2NO + O2 to→ 2NO2
10.4NO2 + O2 + 2H2O → 4HNO3
1. CaCO3 ----> CaO + CO2
2. MgCl2 + 2KOH → Mg(OH)2 + 2KCl
3. Cu(OH)2 + 2HCl → CuCl2 + 2H2O
4. P2O5 + 3H2O ----> 2H3PO4
5. 4P + 5O2 → 2P2O5
6. 2Al + 3H2SO4 ----> Al2(SO4)3 + 3H2
7. Zn + 2HCl ----> ZnCl2 + H2
8. N2 + O2 → 2NO
9. 2NO + O2 → 2NO2
10.4NO2 + O2 + 2H2O → 4HNO3
1. 2Al + 3H2SO4 ----> Al2 ( SO4 )3 + 3H2
2. Cu ( OH )2 + 2HCl ----> CuCl2 + 2H2O
3. 2Fe ( OH )3 + 3H2SO4 ----> Fe2 ( SO4 )3 + 6H2O
4. Al ( OH )3 + 3HCl ----> Al Cl3 + 3H2O
5. Fe SO4 + 2KOH ----> K2SO4 + Fe ( OH )2
6. Na2 CO3 + 2HCl ----> 2NaCl + CO2 + H2O
7. Al2 ( SO4 )3 +6 NaOH ----> 3Na2SO4 +2Al ( OH )3