Chemistry, 21.01.2020 06:31, Amrinderkhattra

Classify each of the following pure substances as an element or a compound. a. helium gas (he) b. mercury (hg) in a thermometer c. sugar (c12h22o11) d. sulfur (s) e. lye (naoh)

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Classify each of the following pure substances as an element or a compound. a. helium gas (he) b. me...