Probably too late to help but solution a is likely a base while solution b is an acid.
two similar things: both are aqueous solution and they are not neutral.
Answer:
6 neutrons. The mass number is the number of protons and neutrons in the nucleus of an atom. The atomic number shows how many protons. Subract the atomic number from the mass number to find the number of neutrons.
Explanation:
It is 79 - + 3 = 76 electrons.
5 Na molecules and 5 Cl molecules
