What is the partial pressure of oxygen in a mixture that contains 0.30 moles of o2, 0.70 moles of n2, and 0.25 moles of ar with a total pressure of 1.1 atm?

i'm assuming that the correct answer is indeed the first one/ "a"..

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.