Question

Differentiate between (a) atom and ion (b) molecu
Describe how Avogadro's number is related to a mole of any sub
Calculate the number of moles of each substance in samples with the following
atomic mass unit.
4.
5.
-6.
masses:
(c) 15g of sodium chloride
(a) 2.4 g of He
(b) 250mg of carbon
(d) 40g of sulphur (e) 1.5kg of Mgo
falaulate the mass in grams of each of the following samples:
a) 0.25 moles of steam​

Answer 1

Answer:

ATOM:

1. the smallest unit of element.

2.takes part in chemical reaction.

3. atoms form molecules.

4. electrons, protons, and neutrons are equal.

5. it is not independent in solution.

ION:

1. single particles or collection of particles.

2. cannot participate in chemical reaction.

3. Ions form electrovalent bond.

4. electrons, protons and neutrons are unequal.

5. it is independent and solution.