(a) State three reasons why air is classified as a mixture. (b) List two methods...
CHEMISTRY
WAEC 1995
(a) State three reasons why air is classified as a mixture.
(b) List two methods that can be used to separate a mixture of iodine crystals and iron filings.
Explanation
(a) Three reasons why air is classified as a mixture include:
(i) The composition of air variables
(ii) The components can be easily obtained/separated by physical means
(iii) The constituents of air still retain their individual properties.
(b) The two methods include (i) Sublimation (ii) Magnetization
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