Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Cu + 4HNO3 → Cu(NO3)2 + 2H2O + 2NO2
1) MgCl2 + 2KOH → Mg(OH)2 + 2KCl
2) Cu(OH)2 + 2HCl → CuCl2 + 2H2O
3) Cu(OH)2 + H2SO4 → CuSO4 + 2H2O
4) FeO + 2HCl → FeCl2 + H2O
5) Fe2O3 + 3H2SO4 → Fe2(SO4)3 + 3H2O
6) Cu(NO3)2 +2 NaOH → Cu(OH)2 + 2NaNO3
7) 4P + 5O2 → 2P2O5
8) N2 + O2 → 2NO
9) 2NO + O2 → 2NO2
10)4NO2 + O2 + 2H2O → 4HNO3
\(1,MgCl_2+2KOH\to Mg(OH)_2\downarrow+2KCl\\ 2,Cu(OH)_2+2HCl\to CuCl_2+H_2O\\ 3,Cu(OH)_2+H_2SO_4\to CuSO_4+H_2O\\ 4,FeO+2HCl\to FeCl_2+H_2O\\ 5,Fe_2O_3+3H_2SO_4\to Fe_2(SO_4)_3+3H_2O\\ 6,Cu(NO_3)_2+2NaOH\to Cu(OH)_2\downarrow+2NaNO_3\\ 7,4P+5O_2\xrightarrow{t^o}2P_2O_5\\ 8,N_2+O_2\buildrel{{t^o}}\over\rightleftharpoons 2NO\\ 9,2NO+O_2\to 2NO_2\\ 10,\text {PT sai}\)
\(4Al+3O_2\underrightarrow{t^o}2Al_2O_3\)
\(4K+O_2\rightarrow2K_2O\)
\(2Al\left(OH\right)_3\underrightarrow{t^o}Al_2O_3+3H_2O\)
\(Al_2O_3+6HCl\rightarrow2AlCl_3+3H_2O\)
\(CaCl_2+Fe\left(OH\right)_3\rightarrow\) Không phản ứng
\(BaCl_2+H_2SO_4\rightarrow2HCl+BaSO_4\downarrow\)
1) 4K + O2 → 2K2O (4:1:2)
2) 2Al +3S→ Al2S3 (2:3:1)
3) 2SO2 + O2 → 2 SO3 (2:1:2)
4)Fe2O3 + 6HNO3 → 2Fe(NO3)3 + 3H2O (1:6:2:3)
5)2K + 2H2O → 2KOH + H2 (2:2:2:1)
6) Al2(SO4)3 + 6NaOH → 2Al(OH)3 + 3Na2SO4 (1:6:2:3)
7) C2H6O + 3O2 → 2CO2 + 3H2O (1:3:2:3)
8) 2FeCl2 +3Cl2 → 2FeCl3 (2:3:2)
9) 4NO2 + O2 + 2H2O → 4HNO3 (4:1:2:4)
10) CnH2n + \(\dfrac{3n}{2}\)O2 → nCO2 + nH2O (1:\(\dfrac{3n}{2}\):n:n)
1) 4Al + 3O2 --to--> 2Al2O3
2) 2NaOH + H2SO4 --> Na2SO4 + 2H2O
3) 2Al + 6HCl --> 2AlCl3 + 3H2
4) Fe2O3 + 3H2SO4 --> Fe2(SO4)3 + 3H2O
5) P2O5 + 3H2O --> 2H3PO4
6) 3Ca(OH)2 + 2FeCl3 --> 3CaCl2 + 2Fe(OH)3
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. 4Na + O2 --- > 2Na2O
2. 2Al + 3S --- > Al2S3
3. Fe(OH)3 + 3HCl --- > FeCl3 + 3H2O
4. Fe2O3 + 3H2SO4 --- > Fe2(SO4)3 + 3H2O
5 . 2NaOH + Cu(NO3)2 --- > 2NaNO3 + Cu(OH)2
6 . 4P + 5O2 --- > 2P2O5