How can you tell if an element has been reduced? O A. The number of its electrons has not changed in the reaction.
B. It has more electrons in the product than in the reactant.
O C. It has fewer electrons in the product than in the reactant
D. It has a positive oxidation state in the product.

explanation: no but i do not usually comment

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence

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.