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Which of the following is an element? A. carbon monoxide gas (CO) B. magnesium chloride salt (MgCl) C. zinc metal (Zn) D. hydrochloric acid (HCl)
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Which of the following is an element? A. carbon monoxide gas (CO) B. magnesium chloride salt (MgCl) C. zinc metal (Zn) D. hydrochloric acid (HCl)

User AmanDeepSharma
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The answer is C. Zinc metal (Zn)

All of the other answers are compounds with multiple elements in them.
User Eric Giguere
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The answer is C) zinc (Zn)
User Cecilphillip
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