1. Classifying
Compounds

2. Acids, Bases & Salts
Compounds are classified into 3 categories:
Acids
Bases
Salts

3. Salts Any ionic compound which is not an acid nor a base.
e.g.
NaCl
sodium chloride (table salt)
MgF2
magnesium fluoride
CuSO4
copper(II) sulphate
Salts are formed when:
Acids react with Bases (Neutralization)
H2SO Mg(OH)2  MgSO H2O
Acid Base Salt water
Salts are made of a positive ion (from a base) and a negative ion (from an acid)

4. Salts continued
Salts can also be formed from oxides, carbonates or metals reacting with acids.
Acids + metals
2 HCl(aq) Mg(s)  MgCl2(aq) H2(g)
Salt hydrogen gas
Acids + carbonates
H2SO4(aq) + CaCO3(s)  CaSO4(aq) + H2O(l) + CO2(g)
Salt
carbonates neutralize acids
protect lakes and ecosystems from acid rain

5. Assignment
Homework:
Neutralization Reactions Worksheet