Which of the following are compounds? i.Carbon dioxide ii.Silicon iii.Sodium carbonate iv.I₂ v.Cr A)i, ii, and iii B)iv and v C)i and iii D)i, iii, and iv E)ii and v

Question

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i. Carbon dioxide (CO2) is a compound. ii. Silicon (Si) is an element, not a compound. iii. Sodium carbonate (Na2CO3) is a compound. iv. I₂ is not a recognized chemical formula. v. Cr is an element, not a compound.

Which of the Following Are Compounds