Balance the following chemical equations (please with steps):-
  1.  CuSO4+NaOH--->Cu(OH)2+Na2SO4
  2. FeCl3+NH4Cl--->Fe(OH)3+NaCl
  3. MnO2+HCl --->MnCl2+H2O+Cl2
  4. Na+H2O--->NaOH+H2
  5. CH4+O2--->CO2+H2O
  6. C2H2+O2--->CO2+H2O
  7. NH3+O2--->NO+H2O
  8. N2+H2--->NH3
  9. Cu+H2SO4--->CuSO4+H2O+SO2
  10. Al+O2--->Al2O3
  11. Al+HCl--->AlCl3+H2
  12. NH3+O2--->NO+H2O
  13. FeS+O2--->Fe2O3+SO2
  14. C2H6 +O2--->H2O+CO2
  15. Fe+H2SO4--->fe2(SO4)3+H2

Asked by kanav2001 | 29th Jun, 2017, 03:47: PM

Expert Answer:

Dear kanav2001@gmail.com

Thanks for asking us a question in Ask the Expert section of TopperLearning.com.

In case of multiple questions within a query, please post each question individually and let us know where you are getting stuck so that we would be able to explain things better.
 
Solution for your first query:
 
CuSO4+NaOH → Cu(OH)2+ Na2SO4
Step 1: Count the number of atoms of all the elements on either side of the chemical equation.
 
Element      Reactant side     Product side 
 
Cu                       1                        1
S                         1                        1
O                         5                        6
Na                       1                        2 
 
Step 2: Copper and sulphur are same on both sides so to equalise sodium, multiply NaOH by 2.
This gives the balanced equation:
CuSO4+2NaOH → Cu(OH)2+ Na2SO4 
 
Element      Reactant side     Product side 
 
Cu                       1                        1
S                         1                        1
O                         6                        6
Na                       2                        2 
 
This gives balanced equation.
CuSO4+2NaOH → Cu(OH)2+ Na2SO4 
 
Regards

Topperlearning Team.

Answered by Prachi Sawant | 29th Jun, 2017, 06:49: PM