This is a molecule that us not a compound

Which of the following best describes the formation of plasma?

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.