What two bonds keep a water molecule together? and NYC, 40 Bond, Gate

What two bonds keep a water molecule together?

I know it's Polar Covalent and a Hydrogen bond.. But don't know the correct phrasing for this question.

Water molecules illustrate two types of chemical bonds. Name and describe these bonds, specifying those between atoms and those between molecules.

A.) Polar covalent bonds between the O and H atoms within each molecule, and hydrogen bonds between the H of one water molecule and the O of another.
B.) Nonpolar covalent bonds between the O and H atoms within each molecule, and hydrogen bonds between the H of one water molecule and the O of another.
C.) Nonpolar covalent bonds between the H of one water molecule and the O of another, and hydrogen bonds between the O and H atoms within each molecule.
D.) Polar covalent bonds between the H of one water molecule and the O of another, and hydrogen bonds between the O and H atoms within each molecule.

I'd assume it's either A or D??


Bond best answer:

Answer by hcbiochem
A.) would be the correct answer. Any covalent bond must be between atoms in a single molecule. Hydrogen bonds are a non-covalent interaction between different molecules which contain the correct type of polar covalent bonds between H and either N, O or F.

Bond

NYC, 40 Bond, Gate


Image by Detlef Schobert
Building: New York City, 40 Bond Street.
Completion: 2007.
Owner: Ian Schrager.
Design architects: Herzog & de Meuron.

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