Advertisements
Advertisements
प्रश्न
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
Fe2O3 + 2H2 → 2Fe + 3H2O
Advertisements
उत्तर
Fe2O3 + 2H2 → 2Fe + 3H2O
Correct balance – 3H2
Fe2O3 + 3H2 → 2Fe + 3H2O
APPEARS IN
संबंधित प्रश्न
Balance the following equation:
\[\ce{NH3 + CuO -> Cu + N2 + H2O}\]
State one characteristic of the chemical reaction which takes place when dilute hydrochloric acid is added to sodium carbonate.
In the experiment for determining the percentage of water absorbed by raisins, we do the final weighing of the raisins after keeping them dipped in water for about one hour. For the accuracy of the result, the extra water from the surface of the soaked raisins is removed by
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate the volume of chlorine gas formed at S.T.P.
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Catalyst
Write word equation for the following chemical reaction given below. Also state the observation seen in the case.
\[\ce{Na2SO3 + 2HCl ->[\triangle] 2NaCl + H2O + SO2}\]
Write a balanced equation for the following word equation:
Nitrogen dioxide + Water + Oxygen → Nitric acid
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
What is a reactant in a chemical equation?
A student took a small amount of copper oxide in a conical flask and added dilute hydrochloric acid to it with constant stirring. He observed a change in colour of the solution.
- Write the name of the compound formed and its colour.
- Write a balanced chemical equation for the reaction involved.
