7.2 Oxides
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11. How do you classify a metal oxide based on its chemical properties?
Most metal oxides are classified as basic oxides because they react with acids to form a salt and water. Some display amphoteric properties.
12. How do you classify a non-metal oxide based on its chemical properties?
Most non-metal oxides are classified as acidic oxides because they react with bases or alkalis to produce a salt and water, or form acidic solutions when dissolved in water.
13. Define an amphoteric oxide and provide the two core syllabus examples.
An amphoteric oxide is an oxide that reacts with both acids and bases to produce a salt and water. The two required examples are zinc oxide (ZnO) and aluminum oxide (Al2O3).