Question

Predict the formula and name the oxide of the following
K AL C

Answer 1

Valency of oxygen is 2

Valency of potassium;K is 1
Therefore potassium oxide is formed whose chemical formula is K2O


Valency of Aluminium;Al is 3
Therefore aluminium oxide is formed whose formula is Al2O3

Valency of Carbon;C is 4
Therefore carbon dioxide is formed whose formula isCO2
Or carbon monoxide whose formula is CO





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