The student is now told that the four solids, in no particular order, are barium chloride (bacl2), sugar (c6h12o6), butanoic acid (c3h7cooh), and sodium bromide (nabr). assuming that conductivity is correlated to the number of ions in solution, rank the four substances based on how well a 0.20 m solution in water will conduct electricity.

Explanation:

Out of those choices, the chemical that ionizes the most is NaBr. It is like table salt (NaCl) in its properties.  Solutbility 121 grams in 100 mL

You might think "Well if NaBr is such a good conductor, maybe a Metal combined with a non metal is the key and BaCl2 should be next."  And in this case you would be right.  36 grams  will dissolve in 100 mL

C3H7COOH is an acid and it is soluble in water. It is an acid and the last H splits off. It is not quite as good as the top two, but good enough all the same.

Sugar is probably the least soluble but it does form a suspension. It would be at the bottom of the last.

girl imma just put my comment here because i need a couple point okurrttt

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.