What is the final, balanced equation that is formed by combining these two half reactions? Cu → Cu2+ + 2e-

NO3 + 2e + 2H+ → NO2+H20

A. Cu2+ + NO3 + 4e + 2H → Cu + NO2 + H2O

B. Cu + NO3 + 2H+ → Cu2+
+ NO 2 + H20

C. 2Cu + NO3 + 2H → 2Cu2+ + NO3 + H20

D. Cu+ NO3 + 2H+ → Cu2+ + NO3 + 2H20

The answer is B on edg 2020

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.