HURRY HELP ME ON 25 MINS LEFT OF CLASS

Which proportionality applies to avogadro’s law?

Equal numbers of moles of he(g), ar(g), and ne(g) are placed in a glass vessel at room temperature. if the vessel has a pinhole-sized leak, which of the following will be true regarding the relative values of the partial pressures of the gases remaining in the vessel after some of the gas mixture has effused?

Why sncl2 is solid while sncl4 is liquid at room temprature explain it in easy way