Which best explains why individual nitrogen atoms form covalent bonds?
a. to exist in larger molecules
b. to occupy most of earth's atmosphere
c. to be more stable than they would be as individual atoms
d. to protect themselves from being destroyed in chemical reactions

The answer is C. to be more stable than they would be as individual atoms

Explanation:

A: To exist in larger molecules

Explanation:

larger modecls are better

The pH at the equivalence point is lower than 7

Explanation:

Given the titration involves a strong acid and a weak base

An example  is the reaction between ammonia  and hydrochloric acid  in the aqueous phase

The pH of the base will ordinarily start high and drop rapidly with the additions of acid. As the equivalence point is approached, the pH will change more gradually, until finally one drop will cause a rapid pH transition through the equivalence point.

If a chemical indicator is used—methyl orange would be a good choice in this case—it changes from its basic to its acidic colour.

In strong acid-weak base titrations, the pH at the equivalence point is not 7 but below it. This is due to the production of a conjugate acid during the titration; it will react with water to produce hydronium ions.