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Two period 3 oxides are insoluble:
Al2O3 & SiO2
The ionic molecules of Na2O & MgO:
Dissolve in water to form basic solutions. (NaOH & Mg(OH)2)
The simple molecular structures of P4O10 & SO2:
Dissolve in water to form acidic solutions. (H3PO4 & H2SO3)
The trend for the pH's is:
Alkaline Oxides → Acidic Oxides
All the oxides can take part in:
Acid-Base reactions.
The basic oxides of Na2O & MgO:
Will neutralise acids.
The acidic oxides of P4O10 & SO2:
Will neutralise bases.
SiO2 although insoluble in water:
Can react with and neutralise bases which makes it acidic.
Al2O3 although insoluble in water:
1) Can react with?
2) This makes it?
1) It can react with and neutralise both acids and bases.
2) This makes it an amphoteric oxide.
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