ICSE Class 7 Answered
Balance the following chemical equations (please with steps):-
- CuSO4+NaOH--->Cu(OH)2+Na2SO4
- FeCl3+NH4Cl--->Fe(OH)3+NaCl
- MnO2+HCl --->MnCl2+H2O+Cl2
- Na+H2O--->NaOH+H2
- CH4+O2--->CO2+H2O
- C2H2+O2--->CO2+H2O
- NH3+O2--->NO+H2O
- N2+H2--->NH3
- Cu+H2SO4--->CuSO4+H2O+SO2
- Al+O2--->Al2O3
- Al+HCl--->AlCl3+H2
- NH3+O2--->NO+H2O
- FeS+O2--->Fe2O3+SO2
- C2H6 +O2--->H2O+CO2
- Fe+H2SO4--->fe2(SO4)3+H2
Asked by kanav2001 | 29 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.
Topperlearning Team.
Answered by Prachi Sawant | 29 Jun, 2017, 06:49: PM
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