Activity 3.16 (Textbook) – Chemistry Form 4 Chapter 3 (The Mole Concept, Chemical Formula and Equation)

Activity 3.16:
Naming compounds
1. Name the ionic compounds with the following formulae:
(a) CaCl₂
(b) KBr
(c) Mg(NO₃)₂
(d) ZnCO₃
(e) Na₂SO₄  
(f) NH₄Cl

2. Name the molecular compounds with the following formulae:
(a) NO
(b) CO₂
(c) SO₃
(d) CCl₄
(e) BF₃
(f) CS₂

3. The molecule of a compound consists of two nitrogen atoms and three oxygen atoms.
Name the compound.


Answer:
1. (a) Calcium chloride
(b) Potassium bromide
(c) Magnesium nitrate
(d) Zinc carbonate
(e) Sodium nitrate
(f) Ammonium chloride

2. (a) Nitrogen monoxide
(b) Carbon dioxide
(c) Sulphur trioxide
(d) Carbon tetrachloride
(e) Boron trifluoride
(f) Carbon disulphide

3. Dinitrogen trioxide