Which of the following is responsible for the cohesive property of water?
a. covalent bonds between the hydrogen atoms of two adjacent water molecules
b. hydrogen bonds between the oxygen atom of one water molecule and a hydrogen atom of another water molecule
c. covalent bonds between the oxygen atom of one water molecule and a hydrogen atom of another water molecule
d. hydrogen bonds between water molecules and other types of molecules

The answer is B.

Explanation:

First of all, you can rule out options A and C because they are talking about covalent bonds. The cohesive property of water is given by intermolecular interactions, and covalent bonds are intramolecular (covalent bonds are the type of bonds that hold the atoms of a molecule together).

Now, you are left with options B and D. But option D is talking about bonds with different types of molecules, not with water. It is true that water can form hydrogen bonds with other molecules, but this property has nothing to do with its cohesivity. Cohesion is, by definition, the attraction of molecules of the same type. This leaves us with option B, which is talking about intermolecular interactions between water molecules, so this one is the only correct option.

sodium (na), for example, has one electron in its valence shell. this is an unstable state because that valence shell needs eight electrons to be full. in order to fill its valence shell, find a way to add seven electrons to its valence shell

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