Question

pls ans this question​

Answer 1

element: it is a primary constituent of matter which cannot be broken down to              simpler forms.  

atom: the smallest part of an element that can exist.

molecule: a group of atoms bonded together which takes part in chemical reactions is called molecule.

no: of moles = given mass / molar mass

= 0.0032 / mass of (CH4)

= 0.0032 / 12+(1x4)

=0.0032 / 12+4

=0.0032 / 16

=0.0002 moles

=2x10^ -4 moles

no: of particles = no: of moles x avogadro no:

= 2x10^ -4 x 6.022 x 10^23

= 12.044 x 10^18 particles

hope this helps.