Nishi Arora Solutions for Chapter: Language of Chemistry, Exercise 3: TEST Yourself

Mention the steps followed to write the molecular formula of a compound.

Write the molecular formula of sodium chloride and carbon dioxide. 

Translate the following chemical changes given in the chemical equation.
Balance it, if required. Magnesium ribbon is burnt in the presence of oxygen gas to produce white solid magnesium oxide.
 

Balance it, if required. Solid calcium carbonate is heated to produce solid calcium oxide and carbon dioxide gas is released.
 

Balance it, if required:

Nitrogen gas reacts with gaseous oxygen to produce gaseous nitrogen dioxide.

Balance the following equations:

${\mathrm{P}}_4+{\mathrm{O}}_2\to {\mathrm{P}}_2{\mathrm{O}}_5$

Differentiate between :

Reactants and products.

Differentiate between a balanced and an unbalanced chemical equation.