Which substance has nonpolar covalent bonds?


Which substance has nonpolar covalent bonds?

(1) Cl2

(2) SO3

(3) SiO2

(4) CCl4

Answer and Explanation: Covalent bonds are formed between 2 or more nonmetals. Looking at the answer choices, we can see that all of the answers have nonmetals, and therefore all have covalent bonds. The molecule that is composed of the same 2 elements has non polar covalent bonds since if the elements are the same they have the same electronegativities and share electrons in the bond equally.

Looking at the answer choices, we can see that choice (1) Cl2 is the right answer since the molecule is composed of two chlorines.

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