Advertisements
Advertisements
प्रश्न
Differentiate between:
A balanced and an unbalanced chemical equation.
Advertisements
उत्तर
- Balanced chemical:
A balanced chemical reaction is one in which the number of atoms of each element on the reactant side is equal to the number of atoms of that element on the product side.
Example: H2 + Cl2 → 2HCl - Unbalanced chemical:
The number of elements on the reactant side is not equal to the number of elements on the product side.
Example: H2 + Cl2 → HCl
APPEARS IN
संबंधित प्रश्न
Write balanced chemical equations for the following word equation:
Magnesium + dil sulphuric acid → Magnesium sulphate + water
Define chemical reaction.
Balance the following equation:
`Fe+ H_2O → Fe_3 O_4+H_2`
Balance the following equation stepwise.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Balance the following equation:
\[\ce{CaO + HCl->CaCl2 + H2O}\]
Balance the following equation:
\[\ce{Al + H2O->Al2O3 + H2}\]
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{2Na + 3H2O->2NaOH + H2}\]
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{2Al + 2H2SO4->Al2(SO4)3 + 3H2}\]
Before burning in air, the magnesium ribbon is cleaned by rubbing with sand paper to:
What happens when a piece of
- zinc metal is added to copper sulphate solution?
- aluminium metal is added to dilute hydrochloric acid?
- silver metal is added to copper sulphate solution?
Also write the balanced chemical equation if the reaction occurs.
