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प्रश्न
Balance the following chemical equation :
Na20 + H20 → NaOH
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उत्तर
Na2O + H2O → 2NaOH
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संबंधित प्रश्न
Balance the following chemical equation.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
With the help of an appropriate example, justify that some of the chemical reactions are determined by the evolution of a gas.
Give a chemical equation for the reaction involved in the above case.
A metal X forms a salt XSO4. The salt XSO4 forms a clear solution in water which reacts with sodium hydroxide solution to form a blue precipitate Y. Metal X is used in making electric wires and alloys like brass.
- What do you think metal X could be?
- Write the name, formula and colour of salt XSO4.
- What is the blue precipitate Y?
- Write a chemical equation of the reaction which takes place when salt XSO4 reacts with sodium hydroxide solution. Give the state symbols of all the reactants and products which occur in the above equation.
Write word equation for the following skeletal equation:
\[\ce{KNO3 -> KNO2 + O2}\]
Balance the following equation:
NaHCO3 → Na2CO3 + H2O + CO2
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate the mass of chlorine gas formed.
Answer the following question:
How do acids and bases react with each other? What is the name of the process? What product is obtained from these reactions?
Name the following:
The silvery residue obtained on heating mercury [II] oxide.
Give an example of a chemical equation in which two reactants form:
one product
Writing a chemical reaction in brief by using chemical formulae is called as _______.
