The document discusses chemical formulas and equations. It provides tables listing common cations and anions along with their formulas. Examples of naming ionic compounds based on their constituent ions are given. Greek prefixes in chemical names are explained. The document introduces writing and balancing chemical equations to represent chemical reactions.

1. CHEMICAL
FORMULA AND
CHAPTER 3
EQUATION

4. Ionic formula
Cation Formula Anion Formula
Sodium ion Na+ Chloride ion Cl─
Potassium ion K+ Bromide ion Br─
Zinc ion Zn2+ Iodide ion I─
Magnesium ion Mg2+ Oxide ion O2─
Calcium ion Ca2+ Hydroxide ion OH─
Iron(II) Fe2+ Sulphate ion SO42─
Iron(III) Fe3+ Carbonate ion CO32─

6. Write the Chemical formula for the
compounds below

8. Naming of chemical
compound
Cation Anion Name of ionic
compound
Na+ Cl─ Sodium chloride
Ca2+ CO32─ Calcium carbonate
Ba+ SO42─ Barium sulphate

9. Types of ions
Cation Name
Fe2+ Iron(II)
Fe3+ Iron(III)
Cu+ Copper(I)
Cu2+ Copper(II)

10. Added with
‘ide’
Anion Name
Cl─ Chloride ion
Br─ Bromide ion
I─ Iodide ion
F─ Flouride ion

11. Greek prefixes
Compound Name
CO Carbon monoxide
CO2 Carbon dioxide
SO3 Sulphur trioxide

12. How many ionic formulas can you form
from the list below?

14. CHEMICAL
EQUATIONS

15. AD
AB CD
BC
Reactants
Product

16. EXAMPLE TO WRITE THE BALANCE CHEMICAL
EQUATION
Magnesium reacts with dilute hydrochloric
acid, HCl to produce magnesium chloride,
MgCl2 and hydrogen gas, H2. Write an equation
to represent the reaction.

17. Let’s watch
a video,
Boys!!

18. Questions!!

20. TO BE CONTINUED …(^_^)