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प्रश्न
Underline the incorrectly balanced compound equation and rewrite the correct equation.
\[\ce{FeS + 2HCl + 2FeCl2 + H2S}\]
उत्तर
Correct equation is:
\[\ce{FeS + 2HCl->FeCl2 + H2S}\]
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संबंधित प्रश्न
Write the balanced equation for the following chemical reaction.
\[\ce{Sodium + Water -> Sodium hydroxide + Hydrogen}\]
Balance the following equation:
\[\ce{Fe2O3 + H2->Fe + H2O}\]
Balance the following important equation:
Fe + HCl → FeCl2 + H2
Balance the following important equation:
\[\ce{Pb3O4 + HCl -> PbCl2 + H2O + Cl2}\]
Balance the following important equation:
NH4OH + H2SO4 → (NH4)2SO4 + H2O
Balance the following important equation:
S + HNO3 (conc.) → H2SO4 + H2O + NO2
Balance the following important equation:
Cu + H2SO4 (conc.) → CuSO4 + H2O + SO2
Why is it important to balance a skeletal chemical equation?
Solid calcium oxide reacts vigorously with water to form calcium hydroxide accompanied by liberation of heat. This process is called slaking of lime. Calcium hydroxide dissolves in water to form a solution called lime water. Which among the following is (are) true about slaking of lime and the solution formed?
- It is an endothermic reaction
- It is an exothermic reaction
- The pH of the resulting solution will be more than seven
- The pH of the resulting solution will be less than seven
Which of the following gases can be used for storage of fresh sample of an oil for a long time?
