Lakhmir Singh and Manjit Kaur Solutions for Chapter: Language of Chemistry, Exercise 3: EXERCISES

In which of the following statement is correct?

Which of the following reaction is not balanced?

Number of atoms in reactants should be _____ to number of atoms in the products.

Balance the following chemical equation:

$\mathrm{C}+{\mathrm{CO}}_2\to \mathrm{CO}$

Observe the following equations:

${\mathrm{H}}_2+\mathrm{O}\to {\mathrm{H}}_2\mathrm{O}$

$2\mathrm{N}+3{\mathrm{H}}_2\to 2{\mathrm{NH}}_3$

Are the above equations are correct? Explain

Why does the reaction between quicklime and water to form the slaked lime makes the container hot?

Why does effervescence are observed in the reaction of sodium carbonate with dilute hydrogen chloride?

The reaction of ammonium chloride with sodium hydroxide gives a strong pungent smell. What is the reason of this pungent smell in the reaction?