Common names do not provide information about the chemical composition of the compound.
Common names are derived from the method used to obtain the compound.
Common names were assigned by the scientist who discovered the compound.
Common names are not very descriptive.
Why are systematic names preferred over common names?
The answer is "Common names do not provide information about the chemical composition of the compound."
Just because you know the common name for a substance like salt doesn't mean you know the chemicals that compose salt is: Sodium Chloride.
Reply:most of the elements r named af ter the people who discovered them
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