What is the formula for Nickel (II) Bisulfate?

Explanation:

We're using nickel with a charge of 2, as indicated by the "(II)" in the name, and bisulfate refers to HSO, which has a charge of 2-, so they are in a 1:1 ratio.

what's the

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.