The answer to this item is the first choice, MOLECULES. The molecules are the smallest particles of both the compounds and even the biatomic elements. They are made up of atoms that are being held together through chemical bonds of different types depending on the type of atoms that shared the electrons.
Answer:
5
Explanation:
There is 1 K, 1 N, and 3 O.
1 + 1 + 3 = 5
Answer:

Explanation:
Hello,
In this case, by knowing that the used NaOH equals in moles the acid (monoprotic) as shown below, during the titration:

By knowing the volume and the concentration of the NaOH, one obtains:

Thus, the molar mass of the acid is computed based on the previously computed moles and the given mass as follows:

Best regards.
Five valence electrons for one nitrogen and 10 valence electrons for two nitrogens