A cation is a positively charged ion.
An anion is a negatively charged ion.
If it's neutral, it's just an ion.
A single ringed nitrogeo base is thymine (C)
I believe that the answer is B: H2O(s) because is the makeup of water also known as one hydrogen and two oxygen. So water as more entropy and the s stands for sol fore i think wich means it contains the most entropy.
