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Which of the following is an element?

A. MgBr

B. HCl

C.O

.D. Cu(SO4)3

User Davoclavo
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2 Answers

2 votes

Answer:

I believe it's C. O

Step-by-step explanation:

O means oxygen

User Raouaoul
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5 votes
the answer is c. the others are compounds.
User Mafick
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