2. Chlorine has 2 isotopes in nature, Cl-35 and Cl-37. If the relative abundance of Cl-35 is 75.78 % and the relative
abundance of Cl-37 is 24.22 %, what is the average atomic
mass for these 2 isotopes?

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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.

answerspecific gravity;