Which gas is used in hospitals for the artificial respiration ?
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Explain substituted hydrocarbon?
What is the role of stannous chloride?
From what was Uranium isolated ?
What is the difference between gas and vapour?
Why does the snow on the mountains not melt all at once, not changed into water very slowly?
How is arsenic produced?
i pass my B.Sc. in 1999(chemistry. i dont understand what study after bsc. i am an average student.After my Bsc i joint my brother factory and i work there as a production, QC and electrical testing for Oil. i try to another job but my exprince not match my education co u tale me what i do.
What is given off on burning a candle ?
What is dextro-rotatory and levo-rotatory?
What is glacial acetic acid?
What are the uses of Alloy ?
Why is alum added to purify water ?