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English 15 Online
OpenStudy (anonymous):

CO2 NaCl HCl These may all be classified as A) elements and compounds. B) elements and molecules. C) elements and pure substances. D) compounds and pure substances.

OpenStudy (superflytyguy):

A) elements and compounds. Compounds are two combined elements.

OpenStudy (anonymous):

thank you

OpenStudy (superflytyguy):

No Problem!

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