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प्रश्न
Differentiate between a ‘word equation’ and a ‘molecular equation’ with a suitable example.
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उत्तर
Word equation tells which substances react (take part) in the chemical reaction and which substances are produced whereas molecular equation symbols and molecular formulas are used for both reactants and products.
Example: When zinc reacts with dilute sulphuric acid, both being reactants, products produced are zinc sulphate and hydrogen gas, which are shown as below:
Word equation:
\[\ce{Zinc + Sulphuric acid->Zinc sulphate + hydrogen}\]
Molecular equation:
\[\ce{\underset{\text{Zinc}}{Zn}+\underset{\text{[Sulphuric acid]}}{H2SO4(dil)}->\underset{\text{[Zinc sulphate]}}{ZnSo4}+\underset{\text{[Hydrogen]}}{H2[g]}}\]
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संबंधित प्रश्न
State four conditions necessary for a chemical reaction to take place.
Balance the following equation. Also name the products formed.
Ag +S → `Ag_2 S`
Write a balanced chemical equation with state symbols for the following reaction.
Sodium hydroxide solution (in water) reacts with hydrochloric acid solution (in water) to produce sodium chloride solution and water.
Balance the following important equation:
Na2CO3 + HCl → NaCl + H2O + CO2
Balance the following important equation:
AIN + H2O `→` Al(OH)3 + NH3
Which of the following are combination reactions?
- `2"KClO"_3 overset("Heat")(->) 2"KCl" + 3"O"_2`
- `"MgO" + "H"_2"O" -> "Mg"("OH")_2`
- `4"Al" + 3"O"_2 -> 2"Al"_2"O"_3`
- `"Zn" + "FeSO"_4 -> "ZnSO"_4 + "Fe"`
Complete the missing component/variable given as x and y in the following reactions
`"CaCO"_2(s)overset(x)(->) "CaO"("s") + "CO"_2("g")`
Ferrous sulphate decomposes with the evolution of a gas having a characteristic smell of burning sulphur. Write the chemical reaction involved and identify the type of reaction.
Identify the types of reaction mentioned above. Give one example for type in the form of a balanced chemical equation.
Complete and balance the following equation:
\[\ce{C2H5COONa + NaOH ->[\Delta][CaO]}\]
