The invention that made possible quantitative studies leading to several basic laws of matter was:

Define dew point. i am writing this part to be able to ask the question

How many grams of mgbr2 are needed to produce 75g or metal?

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?