Be sure to answer all parts. Rank the following groups in order of decreasing priority: A. −COOH B. −H C. −NH2 D. −OH

Explanation:

More is the mass of directly attached atom more will be the priority of the group attached to the alkyl or aryl chain.

Atomic mass of oxygen is 16, nitrogen is 14, carbon is 12, and hydrogen is 1.

This means that as the atomic mass of oxygen is greater than rest of the given atoms. So, priority will be given to the oxygen atom.

Thus, we can conclude that the given groups are placed in order of decreasing priority as follows.

             -OH > > -COOH > -H

b.

the accuracy of the data.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.