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प्रश्न
Write the balanced chemical equation of the following reaction.
potassium dichromate + sulphuric acid → potassium sulphate + chromium sulphate + water + oxygen.
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उत्तर
2K2Cr2O7 + 8H2SO4 → 2K2SO4 + 2Cr2(SO4)3 + 8H2O + 3O2
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संबंधित प्रश्न
What is a balanced chemical equation? Why should a chemical equation be balanced?
State whether the following statement is true or false:
A chemical equation can be balanced easily by altering the formula of a reactant or product.
Complete and balance the following equation:
\[\ce{NaOH + {..........} -> Na2SO4 + H2O}\]
Balance the following equation:
\[\ce{NH3 + CuO -> Cu + N2 + H2O}\]
Giving examples, state the difference between balanced and unbalanced chemical equations.
Which of the following does not involve a chemical reaction?
Write your observations and name the product when
Iron nails are added to an aqueous solution of copper sulphate.
Balance the following equation:
Fe2O3 + CO → Fe + CO2
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Electrical energy
Balance the following chemical equation.
- Na + O2 → Na2O3
- Ca + N2 → Ca3N2
- N2 + H2 →NH3
- CaCO3 +HCl → CaCl2 + CO2 +H2O
- Pb(NO3)2 → PbO + NO2 + O2
