Question

Hydrogen bonds are in the family of Van der Waals forces. They are weaker than ionic and covalent bonds but they cause interesting changes with different chemicals.

What is one of the changes that hydrogen bonds are responsible for?

A. Cause DNA has the double helix shape.

B. Causes salts quickly dissolve in water.

C. Cause sugar looks like a crystal.

D. Cause liquid H₂O to have a larger volume than frozen (solid) H₂O

Answer 1

Hydrogen bonds are weak interactions that occur between polar molecules or within the same molecule. They provide stability to the structures of proteins and DNA, and play a critical role in the properties of water. Option number d is correct.

Step-by-step explanation:

Hydrogen bonds are weak interactions between two polar molecules or between partially charged parts of molecules. The + of the hydrogen from one molecule is attracted to the d- charge on the more electronegative atoms (usually oxygen or nitrogen) of another molecule. Hydrogen bonds can also occur between different parts of the same molecule. Individual hydrogen bonds are weak and easily broken; however, they occur in very large numbers in water and in organic polymers, forming very strong cumulative interactions.

Hydrogen bonds between water molecules provide many of the critical, life-sustaining properties of water and also stabilize the structures of proteins and DNA.