What is the min constitutes of haematite ore?
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why is their exotherm while addition of reducing agents in reduction reaction?
Why can?t the meat and dal( pulses ) be cooled well on the top of high mountains ?
Explain the Boyle?s law ?
What is the chief commercial use of Phosphorus ?
What is Acidity of a base ?
What is Acids, Bases salts ?
What is the bluish white precipitate formed after adding ammonia solution?
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 ?
What is weak acid?
Explain the Different types of solutions ?
what is acidity of a base?
What is chemistry ?