When iron metal reacts with sulfuric acid, It produces iron (III) sulfate and hydrogen gas. Balance the equation: Fe + H2SO4 - Fe2(SO4)3 + H2. Explain why it is necessary to balance chemical equations and why coefficients can be added to an equation, but subscripts cannot be changed.

it is the most commonly accepted one

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.