All of the following describe work being done except:
a. standing in line to pay for groceries
b. putting bags of groceries down on a
counter
c. lifting bags of groceries out of the trunk of
a car
d. putting groceries away in the cupboard

A. standing in line to pay for groceries.

Explanation:

Just standing there is not doing work, All of the other options are examples of work.

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.