Two bottles of gases are sitting on a shelf at 25c. bottle a contains hydrogen gas and bottle b contains helium gas.
a) in which bottle do the molecules of gas have the higher average kinetic energy?
b) in which bottle are the molecules moving faster (have a higher average velocity)?
c) if not the same velocity, by how much faster is the velocity of the gases?

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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.