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प्रश्न
Write symbolic representation for the following word equation and balance them :
Calcium oxide + Water → Calcium hydroxide
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उत्तर
Calcium oxide + Water → Calcium hydroxide
`"CaO" + "H"_2"O" → "Ca" ("OH")_2`
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संबंधित प्रश्न
Balance the following equation:
\[\ce{H2O2 -> H2O + O2}\]
Write word equation for the following skeletal equation:
\[\ce{Zn + HCl -> ZnCl2 + H2}\]
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
Raisins are wiped off gently before final weighing with the help of
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
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.
Heat energy
Name the following:
The silvery residue obtained on heating mercury [II] oxide.
Name the following:
The gas evolved when a dilute acid is added to chalk [limestone].
Balance the following simple equation:
Mg + N2 → Mg3N2
Write the skeleton equation for the following word equation and then balance them.
- Carbon + Oxygen → Carbon dioxide.
- Phosphorus + Chlorine → Phosphorus pentachloride.
- Sulphur + Oxygen → Sulphur dioxide.
- Magnesium + hydrogen → Magnesium + Hydrogen chloride chloride.
