Question

what is the most important role of hydrogen bonding between water molecules? it allows cells to keep water in balance. it enables water molecules to bond to each other. it allows oxygen and hydrogen atoms to be charged.

Explanation:

Hydrogen - bonding between water molecules enables water molecules to bond to each other. This property is crucial for many of water's unique characteristics such as high surface - tension, high heat capacity, and its ability to act as a good solvent. The other options are incorrect as hydrogen - bonding is not about charging oxygen and hydrogen atoms directly, and while it does contribute to water balance in cells, its most fundamental role among the given options is allowing water molecules to bond to each other.

Answer:

It enables water molecules to bond to each other.