Question

1. in chemistry you learned that covalent bonds are one type of intramolecular bond. they occur between nonmetal atoms in a molecule. you may have also learned about a type of intermolecular bond called a hydrogen bond. hydrogen bonds are weak attractive forces between polar molecules containing strong polar bonds such as h - o, h - n or h - f.
2. which of the molecules in model 2 would form hydrogen bonds with itself (that is, other molecules of the same type) or with water molecules if in a solution?

a. label at least two covalent bonds in the diagram above.
b. label at least one hydrogen bond in the diagram above.

Explanation:

Step1: Identify covalent bonds

Covalent bonds are the bonds where atoms share electrons. In the given diagram, in the molecule with nitrogen - containing part, the bonds between C - N, C - H, N - H are covalent bonds. Also, the C=O bond is a covalent bond. We can label two of them, for example, the N - H bond and the C=O bond.

Step2: Identify hydrogen bonds

Hydrogen bonds are weak attractions between a hydrogen atom bonded to a highly electronegative atom (N, O, F) and another electronegative atom. In the diagram, the dotted lines represent hydrogen bonds. For example, the dotted line between the O of one water - like molecule and the H of the N - H group is a hydrogen bond.

Answer:

a. N - H and C=O (covalent bonds)
b. The dotted line between O of a water - like molecule and H of N - H (hydrogen bond)