Oxides

Acid and Bases -Types of Oxides- Many acids and alkali are formed by dissolving oxides in water

At the end of this e-learning, you should able to: ,[object Object]

What is an oxide? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Acidic oxides ,[object Object],[object Object]

Acidic oxides ,[object Object],[object Object],[object Object],SO 3 + H 2 O H 2 SO 4

Acidic oxides ,[object Object],[object Object],[object Object],CO 2 + 2NaOH Na 2 CO 3 + H 2 O

Examples of acidic oxides phosphoric acid, H 3 PO 4 P 4 O 10 phosphorous(V) oxide CO 2 SO 2 SO 3 Formula carbonic acid, H 2 CO 3 sulphurous acid, H 2 SO 3 sulphuric acid, H 2 SO 4 Acid Produced with Water carbon dioxide sulphur dioxide sulphur trioxide Acidic Oxide

Basic oxides ,[object Object],[object Object],[object Object],[object Object],Calcium oxide (quicklime)

Basic oxides ,[object Object],[object Object],[object Object],MgO + 2HC l MgC l 2 + H 2 O This is a neutralisation reaction

Examples of basic oxides CuO copper(II) oxide CaO Na 2 O MgO Formula calcium oxide sodium oxide magnesium oxide Basic Oxide

Amphoteric oxides ,[object Object],[object Object],[object Object],Zinc oxide

Amphoteric oxides ,[object Object],[object Object],[object Object],[object Object],hydrochloric acid aluminium chloride water aluminium oxide + + aluminium oxide sodium hydroxide sodium aluminate water + +

Neutral oxides ,[object Object],[object Object]

Examples of neutral oxides NO CO H 2 O Formula nitric oxide carbon monoxide water Neutral Oxide

How can we classify an unknown oxide? ,[object Object],[object Object],YES NO

It is either a basic or amphoteric oxide. ,[object Object],[object Object],Soluble Insoluble

It is either an acidic or neutral oxide. ,[object Object],[object Object],Soluble Insoluble

Amphoteric oxide What is an amphoteric oxide? Back to first question

Basic oxide What is a basic oxide? Cook an egg with calcium oxide Back to first question

Acidic oxide What is an acidic oxide? How does acidic oxide affects the atmosphere? Back to first question

Neutral oxide What is an neutral oxide? Back to first question Back to the first slide

Oxides

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Oxides