reaction of oxides

Question 1

basic oxides (metallic oxide)

Answer 1

react only with acids to form salt and hydrogen gas
soluble in water:
alkalis eg potassium oxide (K2O), sodium oxide (Na2O), lithium oxide(Li2O), calcium oxide(CaO), Barium oxide (BaO)
insoluble in water:
magnesium oxide (MgO), copper (II) oxide (CuO), iron(II) oxide (FeO), iron (III) oxide(Fe2O3)

Question 2

amphoteric oxides (metallic oxide)

Answer 2

reacts with alkalis and acids to form salt and water
insoluble in water
eg. zinc oxide (ZnO)

Question 3

acidic oxides (non-metallic oxides)

Answer 3

reacts only with alkalis to form salt and water
soluble in water:
nitrogen dioxide(NO2) , phosphorous(V) oxide (P2O5)
insoluble in water:
silicon dioxide (SiO2)

Question 4

neutral oxides (non-metallic oxides)

Answer 4

does not react with an acid or base
insoluble in water
- carbon monoxide(CO), nitric oxide/nitrogen oxide (NO)