Question

State the number of atoms of each element, present in :

1. ${\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6$
2. ${\mathrm{H}}_2{\mathrm{SO}}_4$
3. ${\mathrm{HNO}}_3$
4. ${\mathrm{CaCO}}_3$

Also name these compounds.

Answer 1

Atoms are the smallest entities or units of matter. Atoms combine to form elements and molecules.

The number of atoms present in the following are:

${\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6$	C = 6 atoms	H = 12 atoms	O = 6 atoms	The name of this compound is Glucose.
${\mathrm{H}}_2{\mathrm{SO}}_4$	H = 2 atoms	S = 1 atom	O = 4 atoms	The name of this compound is Sulphuric acid.
${\mathrm{HNO}}_3$	H = 1 atom	N = 1 atom	O = 3 atoms	The name of this compound is Nitric acid.
${\mathrm{CaCO}}_3$	Ca = 1 atom	C = 1 atom	O = 3 atoms	The name of this compound is Calcium carbonate.