Is sulfuric acid a mixture or a pure substance? Is hydrogen chloride a mixture or a pure substance?

Sulfuric acid is a mixture of two atoms of chemical element # 1 (hydrogen), one atom of chemical element # 16 (sulfur), as well as four atoms of chemical element # 8 (oxygen). The sulfuric acid molecule has a molecular weight of ninety-eight grams per mole. Hydrogen chloride is a mixture of one atom of chemical element # 1 (hydrogen) and one atom of chemical element # 17 (chlorine). The hydrogen chloride molecule has a relative molecular weight of thirty-six grams per mole.



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