Consider the chemical equation below. If you are given 2 mols of HCl and 5 mols of Zn, which reactant is the limiting reagent. Determine how much
excess reactant is left over once the limiting reagent is used up.
Zn + 2 HCl → ZnCl2 + H2

answer; i believe that the correct answer is (a) potassium(k)

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.