Cambridge Olevel Chemistry revision notes

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Lesson

Lesson-11.1.4- State the composition of clean, dry air as being approximately 78% nitrogen, 21% oxygen and the remainder as being a mixture of noble gases and carbon dioxide.

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Lesson-11.1.3- Name some of the uses of water in industry and in the home.Previous Lesson-11.1.5- Name the common pollutants in the air as being carbon monoxide, sulfur dioxide, oxides of nitrogen and lead compounds.Next