Lesson: Chapter 10 — Chemical Bonds

10.2. Covalent bonds 3 of 12 Reset answers

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Question 3

Two oxygen atoms share two pairs of electrons between them to form an oxygen molecule. What is this bond called?

A A double bond B An ionic bond C A single bond D A triple bond

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A double bond. The name counts the shared pairs, not the atoms: two pairs shared between the same two atoms make a double bond.

A single bond is one shared pair and a triple bond is three. It cannot be ionic — both atoms are oxygen and pull equally, so neither can take electrons from the other.

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