1. 2Al + 3O₂ \(\rightarrow\) 2AlCl₃

tỉ lệ 2:3:2

2. 2Fe + 3Cl₂ \(\rightarrow\) 2FeCl₃

tỉ lệ 2:3:2

3. 2Na + 2H₂O \(\rightarrow\) 2NaOH + H₂

tỉ lệ 2:2:2

4. Zn + 2HCl \(\rightarrow\) ZnCl₂ + H₂

tỉ lệ 1:2:1:1

5. 2C_xH_y + (2x+y/2)O₂ \(\rightarrow\) 2xCO₂ + yH₂O

tỉ lệ 2:(2x+y/2):2x:y

6.P₂O₅ + 3H₂O \(\rightarrow\) 2H₃PO₄

tỉ lệ 1:3:2

7. Fe₂(SO₄)₃ + 6KOH \(\rightarrow\) 2Fe(OH)₃ + 3K₂SO₄

tỉ lệ 1:6:2:3

8. 2Fe + 3Cl₂ \(\rightarrow\) 2FeCl₃

tỉ lệ 2:3:2

9. 2C_nH_2n-2 + (n-1)O₂ \(\rightarrow\) 2nCO₂ + 2(n-1)H₂O

tỉ lệ 2:(n-1):2n:2(n-1)

10. N₂O₅ + H₂O \(\rightarrow\) 2HNO₃

tỉ lệ 1:1:2

11. FeCl₃ + 3NaOH \(\rightarrow\) Fe(OH)₃ + NaCl

tỉ lệ 1:3:1:1

12. 2Al + 3Cl₂ \(\rightarrow\) 2AlCl₃

tỉ lệ 2:3:2

\(2C_xH_yO_z+\dfrac{4x+y-2z}{2}O_2\underrightarrow{t^o}2xCO_2+yH_2O\)

\(2C_xH_yO+\dfrac{4x+y-2}{2}O_2\underrightarrow{t^o}2xCO_2+yH_2O\)

\(6Fe_xO_y+\left(12x-2y\right)H_2SO_{4\left(đ\right)}\underrightarrow{t^o}3xFe_2\left(SO_4\right)_3+\left(3x-2y\right)S+\left(12x-2y\right)H_2O\)

\(8Fe_xO_y+\left(30x-4y\right)HNO_3\rightarrow8xFe\left(NO_3\right)_3+\left(3x-2y\right)N_2O+\left(15x-2y\right)H_2O\)

$\rm k)2KMnO_4 \xrightarrow{t^o} K_2MnO_4 + MnO_2 + O_2 \uparrow$
$\rm l)CH_4 + 2O_2 \xrightarrow{t^o} CO_2 + 2H_2O$
$\rm m)2Al + 3H_2SO_4 \rightarrow Al_2(SO_4)_3 + 3H_2 \uparrow$
$\rm n)Na_2CO_3 + CaCl_2 \rightarrow CaCO_3 \downarrow + 2NaCl$
$\rm o)2Na + 2H_2O \rightarrow 2NaOH + H_2 \uparrow$
$\rm p)CaO + 2HNO_3 \rightarrow Ca(NO_3)_2 + H_2O$
$\rm q)P_2O_5 + 3H_2O \rightarrow 2H_3PO_4$
$\rm r)Zn + 2HCl \rightarrow ZnCl_2 + H_2 \uparrow$
$\rm s)4Al + 3O_2 \xrightarrow{t^o} 2Al_2O_3$
$\rm t)Ba(OH)_2 + 2HCl \rightarrow BaCl_2 + 2H_2O$

a) \(3Fe+2O_2\rightarrow Fe_3O_4\)

b) \(Fe_3O_4+8HCl\rightarrow FeCl_2+2FeCl_3+4H_2O\)

c) \(2NaHCO_3\rightarrow Na_2CO_3+CO_2+H_2O\)

d) \(2C_2H_2+5O_2\rightarrow4CO_2+2H_2O\)
 

a) \(K_2O+H_2O->2KOH\)

b) \(2Fe+3Cl_2->2FeCl_3\)

c) \(2Al\left(OH\right)_3+3H_2SO_4->Al_2\left(SO_4\right)_3+6H_2O\)

d) \(4FeS_2+11O_2->2Fe_2O_3+8SO_2\)

e)\(2Al+6HCl->2AlCl_3+3H_2\)

f) \(2KClO_3->KCl+3O_2\)

g) \(4P+5O_2->2P_2O_5\)

h) \(3Fe+2O_2->Fe_3O_4\)

i) \(2Al+3CuSO_4->Al_2\left(SO_4\right)_3+3Cu\)

j) \(2K+2H_2O->2KOH+H_2\)

lưu huỳnh oxi đồng

canxi sắt

mặt trời đồng

1+1=3

hok tốt

hello Duy

hello Duy

hello Duy

a) \(N_2+O_2\rightarrow2NO\)

\(\begin{matrix}N^0\rightarrow N^{+2}+2e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times1\\\times1\end{matrix}\)

b) \(C_2H_5OH+3O_2\rightarrow2CO_2+3H_2O\)

\(\begin{matrix}C^{-2}\rightarrow C^{+4}+6e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times1\\\times3\end{matrix}\)

c) \(CH_4+2O_2\rightarrow CO_2+2H_2O\)

\(\begin{matrix}C^{-4}\rightarrow C^{+4}+8e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times1\\\times4\end{matrix}\)

d) \(2H_2S+3O_2\rightarrow2H_2O+2SO_2\)

\(\begin{matrix}S^{-2}\rightarrow S^{+4}+6e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times1\\\times3\end{matrix}\)

e) \(4NH_3+3O_2\rightarrow2N_2+6H_2O\)

\(\begin{matrix}N^{-3}\rightarrow N^0+3e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times2\\\times3\end{matrix}\)

a)N2+O2->2NO

b)C2H5OH+3O2->2CO2+3H2O

c)CH4+2O2->CO2+2H2O

d)H2S+3/2O2->H2O+SO2 / 2H2S+3O2->2H2O+2SO2

e)2NH3+3/2O2->N2+3H2O / 4NH3+3O2->2N2+6H2O

CHÚC BN HỌC TỐT :))))

phương trình d của bạn bị nhầm rồi

\(n_{H_2O}=\dfrac{1.8}{18}=0.1\left(mol\right)\)

\(C_2H_2+\dfrac{5}{2}O_2\underrightarrow{t^0}2CO_2+H_2O\)

\(0.1.........0.25......0.2..........0.1\)

\(V_{C_2H_2}=2.24\left(l\right)\)

\(V_{O_2}=0.25\cdot22.4=5.6\left(l\right)\)

\(V_{CO_2}=0.2\cdot22.4=4.48\left(l\right)\)