What is the compound name fo HC2H3O2?

http://acronyms.thefreedictionary.com/HC2H3O2

To determine the compound name for HC2H3O2, we need to break it down into its constituent elements and then use the naming rules for both the cation (positively charged ion) and anion (negatively charged ion) to form the compound's name.

Let's break it down:

H: Hydrogen (an element)
C: Carbon (an element)
2: Subscript indicating the number of atoms
H3O2: This is not an element but represents the hydroxide ion (OH-) combined with one extra hydrogen ion (H+).

Now, let's name it:

H is the cation (H+) and C2H3O2 is the anion (also known as the acetate ion).

Following the naming rules, the compound name for HC2H3O2 is "Acetic Acid." Acetic acid is a weak acid commonly found in vinegar.

To determine this answer, I used my knowledge of chemical nomenclature to identify the elements involved and then applied the appropriate naming rules for cations and anions to form the compound name.