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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
Balance the following equation:
Zn + HCI → ZnCI2 + H2
Write balanced chemical equations for the following word equation:
Magnesium + dil sulphuric acid → Magnesium sulphate + water
What information do you get from the following chemical equation:
Zn(s) + 2HCl (dil) → ZnCl2 (aq) + H2(g)
Name the type of chemical reaction shown by the following equation:
Fe2O3 + 2Al → Al2O3 + 2Fe
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{2Al + 2H2SO4->Al2(SO4)3 + 3H2}\]
Which among the following change is exothermic or endothermic in nature?
Dissolution of sodium hydroxide in water
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.
Which of the following statement is incorrect with reference to the reaction of silver nitrate with sodium chloride?
Identify the types of reaction mentioned above. Give one example for type in the form of a balanced chemical equation.
Write the balanced equation for the following chemical reaction.
\[\ce{Barium chloride + Aluminium sulphate -> Barium sulphate + Aluminium chloride}\]
