Question

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guys
how are you ?

what is meant by chemicals?​

Answer 1

Answer:

hi

Explanation:

Factory waste is neutralised before depositing it into the water bodies. ... factory wastes are neutralized before disposing into water bodies because, factory wastes often contain acid. if it reaches a river, the acid will kill aquatic life. this is prevented by adding a base called slaked lime.

Answer 2

Chemical is formed when two or more other substances act upon one another or that is used to produce a change in another substance.