1) copper oxide and carbon combine to produce metallic copper. which of these is the balanced equation for this reaction? a. cu2o+c -> 2cu+co2 b.2cu2o+c -> 4cu+co2 c.3cu2o+c -> 3cu+co2 d.2cu2o+2c -> 2cu+2co2

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.