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प्रश्न
Why it is necessary to balance a chemical equation ?
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उत्तर
A chemical equation needs to be balanced so as to make the number of the atoms of the reactants equal to the number of the atoms of the products.
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संबंधित प्रश्न
What are the limitations of a chemical equation ?
Balance the following equation:
N2 + H2 → NH3
Balance the following equation:
`N_2+O_2 → NO`
Chemical equations suffer from a number of limitations. State the main limitations of a chemical equation.
Balance the following equation:
\[\ce{Fe2O3 + CO->Fe + CO2}\]
Balance the following important equation:
Pb(OH)2 + NaOH → Na2PbO2 + H2O
Balance the following important equation:
Al2O3.2H2O + NaOH → NaAlO2 + H2O
Balance the following important equation:
NH3 + O2 → N2 + H2O (burning of NH3)
A magnesium ribbon is burnt in oxygen to give a white compound ‘X’ accompanied by emission of light. If the burning ribbon is now placed in an atmosphere of nitrogen, it continues to burn and forms a compound ‘Y’.
- Write the chemical formulae of X and Y.
- Write a balanced chemical equations when X and Y are dissolved in water.
The equation Na + H2O → NaOH + H2 is ______.
