CH4 + 2O2 -> (t°) CO2 + 2H2O

C2H2 + 2Br2 -> C2H2Br4

CH4 + Cl2 -> (askt) CH3Cl + HCl

2C2H2 + 5O2 -> (t°) 4CO2 + 2H2O

C2H4 + Br2 -> C2H4Br2

nCH2=CH2 -> (t°, p, xt) n(-CH2-CH2-)

C2H4 + 3O2 -> (t°) 2CO2 + 2H2O

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 :))))

Trả lời :

a) \(CO_2+C\underrightarrow{t^{\text{o}}}2CO\)

b) \(2H_2O_2\underrightarrow{\text{xt }MnO_2}2H_2O+O_2\)

c) \(3O_2\underrightarrow{\text{tia UV}}2O_3\)

d) \(N_2+O_2\underrightarrow{t^{\text{o}},\text{ xt }PtO_2}2NO\)

a) \(CO_2+C\underrightarrow{t^o}2CO\)

b) \(2H_2O_2\underrightarrow{MnO_2}2H_2O+O_2\uparrow\)

c) \(3O_2\underrightarrow{\text{tia cực tím}}2O_3\)

d) \(N_2+O_2\underrightarrow{t^o, MnO_2}2NO\)

1) 2KClO₃ \(\underrightarrow{to}\) 2KCl + 3O₂

5O₂ + 4P \(\underrightarrow{to}\) 2P₂O₅

P₂O₅ + 3H₂O → 2H₃PO₄

2H₃PO₄ + 3Ca → Ca₃(PO₄)₂ + 3H₂

2) 2KClO₃ \(\underrightarrow{to}\) 2KCl + 3O₂

O₂ + 4Na → 2Na₂O

Na₂O + H₂O → 2NaOH

2KClO₃ \(\underrightarrow{to}\) 2KCl + 3O₂

O₂ + 2H₂ \(\underrightarrow{to}\) 2H₂O

2H₂O \(\xrightarrow[phân]{điện}\) 2H₂ + O₂

2H₂ + O₂ \(\underrightarrow{to}\) 2H₂O

H₂O + K₂O → 2KOH

1. \(4P+5O_2\rightarrow2P_2O_5\)

2. \(N_2+3H_2\rightarrow2NH_3\)

4. \(Fe+2HCl\rightarrow FeCl_2+H_2\)

3. \(2Al+6HCl\rightarrow2AlCl_2+H_2\)

5. \(Fe_2O_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+3H_2O\)

6. \(Fe_3O_4+4H_2\rightarrow3Fe+4H_2O\)

7. \(2Fe+3Cl_2\rightarrow2FeCl_3\)

8. \(2Al+3S\rightarrow Al_2S_3\)

9. \(2Al_2O_3\rightarrow4Al+3O_2\)

1. 4P+5O2→2P2O5

2. N2+3H2→2NH3

4. Fe+2HCl→FeCl2+H2

3. 2Al+6HCl→2AlCl2+H2

5. Fe2O3+3H2SO4→Fe2(SO4)3+3H2O

6. Fe3O4+4H2→3Fe+4H2O

7. 2Fe+3Cl2→2FeCl3

8. 2Al+3S→Al2S3

9. 2Al2O3→4Al+3O2

5)

1) 2

2) C_nH_{2n + 2} + \(\dfrac{3n+1}{2}\) O₂ -> nCO₂ + (n+1)H₂O.

3) C_nH_{2n – 2} + \(\dfrac{3n-1}{2}\) O₂ -> nCO₂ +(n-1) H2O.

4) C_nH_2n-6 +\(\dfrac{3n-3}{2}\) O2 -> nCO2 + (n-3) H2O

5) O+\(\dfrac{3n}{2}\)O2→n+(n+1)H2O

6) 2C_xH_yO_z + \(\dfrac{4x+y-2z}{2}\) O2 →2x CO₂ + yH₂O

7)

8)

9) 2

10)

11)

12) 3

2K + O₂ -> K₂O (tỉ lệ 2:1:1)

2Na + 2H₂O -< 2NaOH + H₂ (tỉ lệ 2:2:2:1)

2Al + 6HCl -> 2AlCl₃ + 3H₂ (tỉ lệ 2:6:2:3)

2KMnO₄ -> K₂MnO₄ + MnO₂ + O₂ (tỉ lệ 2:1:1:1)

4FeS₂ + 11O₂ -> 2Fe₂O₃ + 8SO₂ (tỉ lệ 4:11:2:8)

P₂O₅ + 3H₂O -> 2H₃PO₄ (tỉ lệ 1:3:2)

M bik lm r thì kệ m

Ai lm cho m đâu

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

\(2C_4H_{10}+13O_2\rightarrow CO_2+10H_2O\)

\(2C_xH_y+\frac{\left(4x+y\right)}{2}O_2\rightarrow2xCO_2+yH_2O\)

CH4 + 2O2 -> (t°) CO2 + 2H2O

C2H2 + 2Br2 -> C2H2Br4

CH4 + Cl2 -> (as) CH3Cl + HCl

2C2H2 + 5O2 -> (t°) 4CO2 + 2H2O

nCH2=CH2 -> (-CH2-CH2-)n

C2H4 + 3O2 -> (t°) 2CO2 + 2H2O