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Oxides by Mind Map: Oxides
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Oxides

is a

compound of oxygen and another element

can be grouped as

acidic oxides

are oxides of non metals

most dissolve in water to form an acid

Examples of Acidic Oxides and acids produced in water:, Sulfur Dioxide SO₂Forms Sulfurous Acid (H₂SO₃), Carbon Dioxide CO₂Forms Carbonic Acid (H₂CO₃), Sulfur Trioxide SO₃Forms Sulfuric Acid (H₂SO₄)

react with alkalis to form a salt and water (like acids), Eg: sulfur trioxide + sodium hydroxide --> sodium sulfate + water

basic oxides

are oxides of metals

solubility, most are insoluble, soluble, (Dissolves readily in water), alkalis, Sodium Oxide, Potassium Oxide, Calcium Oxide, Eg: Calcium Oxide + Water --> Calcium Hydroxide (which is an alikali, limewater), Can be used to neutralize something too acidic

properties, are solids at room temperature, react with acids to form salt and water like alkalis, Eg: Calcium oxide + Nitric Acid --> calcium nitrate + water

amphoteric oxides

are metallic oxides that react with both acids and bases to form salt and water, Examples:, Aluminium Oxide, Lead (II) Oxide, Zinc Oxide, produces a salt and water by combining with an acid or alkali, Zinc Oxide + Dilute Sulfuric Acid --> Zinc Sulfate + Water, Zinc Oxide + Sodium Hydroxide --> sodium zincate + water

has dual properties (show both acidic and basic properties), when placed in acid it reacts like a base, when placed in alkali it reacts like an acid

dissolves in both acids and alkalis

neutral oxides

insoluble in water

show neither basic nor acidic properties

Examples:, water, carbon monoxide (CO), nitric oxide (NO)