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What is an indicator?
An indicator has one definite colour in an acidic solution and another definite colour in an alkaline solution
An indicator has one definite colour in an acidic solution and another definite colour in an alkaline solution
See lessA base
A base is a substance that reacts with an acid to form salt and water only
A base is a substance that reacts with an acid to form salt and water only
See lessIdentify types of soil samples
Loam soil is a mixture of sand about 40%, clay 15% and organic matter 1-4%. It is dark and has a stable crumb structure Clay soil is heavy and has fine particles with a sticky feel when wet. Sandy soil is light and has a gritty when wet
Loam soil is a mixture of sand about 40%, clay 15% and organic matter 1-4%. It is dark and has a stable crumb structure
Clay soil is heavy and has fine particles with a sticky feel when wet.
Sandy soil is light and has a gritty when wet
See less