Question

Cân bằng số n:tử của các n:tố trong Sđồ phản ứng sau :

1/ Zn+HCl -->ZnCl₂+H₂ | 2/ Fe+O₂--> Fe₃O₄

3/Al+Cl₂ --> AlCl₃ | 4/ Fe₂O₃₊H_2--> Fe +H₂O

5/Fe₃O₄+H₂--> Fe+H₂O|6/ P +O₂--> P₂O₅

7/Al₂O₃+HCl--> AlCl₃+H₂O | 8/ Al +HCl--> AlCl₃+H₂

9/Fe(OH)₃ --> Fe₂O₃+H₂O| 10/ Fe₂O₃+C --> Fe + CO₂

Answer 1

Zn + 2HCl --> ZnCl2 + H2

3Fe + 2O2 -to-> Fe3O4

2Al + 3Cl2 -to-> 2AlCl3

Fe2O3 + 3H2 -to-> 2Fe + 3H2O

Fe3O4 + 4H2 -to-> 3Fe + 4H2O

4P + 5O2 -to-> 2P2O5

Al2O3 + 6HCl --> 2AlCl3 + 3H2O

2Al + 6HCl --> 2AlCl3 + 3H2O

2Fe(OH)3 -to-> Fe2O3 + 3H2O

2Fe2O3 + 3C -to-> 4Fe + 3CO2

Answer 2

Answer 3

#Walker

Answer 4

\(Zn+2HCl\rightarrow ZnCl_2+H_2\)

\(3Fe+2O_2\underrightarrow{t\sigma}Fe_3O_4\)

\(2Al+3CL_2\underrightarrow{to}2ALCl_3\)

\(Fe_3O_3+3H_2\underrightarrow{to}2Fe+3H_2O\)

\(Fe_3O_4+4H_2\underrightarrow{to}3Fe+4H_2O\)

\(4P+5O_2\underrightarrow{to}2P_2O_5\)

\(Al_2O_3+6HCl\rightarrow2AlCl_3+3H_2O\)

\(2Fe\left(OH\right)_3\underrightarrow{to}Fe_2O_3+3H_2O\)

\(2Fe_2O_3+3C\underrightarrow{to}4Fe+3CO_2\)

Answer 5

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

2. 3Fe + 2O₂\(\underrightarrow{t^o}\) Fe₃O₄

3. 2Al + 3Cl₂\(\underrightarrow{t^o}\) 2AlCl₃

4. Fe₂O₃ + 3H₂ \(\underrightarrow{t^o}\) 2Fe + 3H₂O

5. Fe₃O₄ + 4H₂ \(\underrightarrow{t^o}\) 3Fe + 4H₂O

6. 4P + 5O₂ \(\underrightarrow{t^o}\) 2P₂O₅

7. Al₂O₃ + 6HCl \(\underrightarrow{t^o}\) 2AlCl₃ + 3H₂O

8. 2Al + 6HCl \(\underrightarrow{t^o}\) 2AlCl₃ + 3H₂O

9. 2Fe(OH)₃ \(\underrightarrow{t^o}\) Fe₂O₃ + 3H₂O

10. 2Fe₂O₃ + 3C \(\underrightarrow{t^o}\) 4Fe + 3CO₂

Answer 6

Cân bằng số n:tử của các n:tố trong Sđồ phản ứng sau :

1/ Zn+2HCl -->ZnCl₂+H₂

2/ 3Fe+2O₂--> Fe₃O₄

3/2Al+3Cl₂ --> 2AlCl₃

4/ Fe₂O₃ + 3H₂ --> 2Fe +3H₂O

5/Fe₃O₄+ 4H₂--> 3Fe+4H₂O

6/ 4P +5O₂--> 2P₂O₅

7/Al₂O₃+6HCl--> 2AlCl₃+3H₂O

8/ 2Al +6HCl--> 2AlCl₃+3H₂

9/2Fe(OH)₃ --> Fe₂O₃+3H₂O

10/ 2Fe₂O₃+3C --> 4Fe + 3CO₂