How are the waters classified based on the degree of hardness?
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Which gas is used in bleaching powder.
While standing on railway platform and heating the whistle of an engine coming towards us , we hear the sound increasing; bit when the engine is receding from us it appears to fall why ?
Why does water boil above 100 o C in mines ?
What is Daltons Atomic Theory ?
what are the role of chemistry education in sustainable development
What is meant by amalgam ?
Why is mercuric chloride added?
However ozone is heavier than oxygen still ozone is up there in sky why?
Give the others form of iron ore.
In winter, on a cold morning, the cement feels colder to the foot than a carpet. Why ?
What is protein - according to chemistry?
What is the resulting solution when benzene and toluene are mixed ?