A rubber stopper weighing 8.554 grams displaces 7.0 mL of water. To the nearest tenth of a gram per mL, what is the density of the ſubber stopper? (You do not need to include units in your answer.)​

c. 75.7

i think that is the right

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.

it has both hydrogen and oxygen