How many single covalent bonds can oxygen form?

Answer 1

Two, corresponding to the number of available valence electrons that it has.

Generally speaking, the valence electrons—the outermost electrons that can be shared in covalent bonds or given up in ionic bonds—determine the number and kind of bonds that can be formed with any element.

Applying the "octet rule" to an element's valence electrons will determine how many bonds it can form to "complete" its outer shell. "Missing" valence electrons are equally important, as they indicate orbitals that need to be completed through electron sharing or acquisition from another element.

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Answer 2

Sarah Angotti

Oxygen can form two single covalent bonds.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.