Which statement holds true when the molar mass of hydrogen is 2.0 grams and that of helium is 4.0 grams? hydrogen effuses 1.4 times faster than helium. hydrogen effuses 0.71 times faster than helium. helium effuses 1.4 times faster than hydrogen. helium effuses 0.71 times faster than hydrogen. the rate of effusion of both gases is the same.

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

Listen base your answer to the question on the information below.propane is a fuel that is sold in rigid, pressurized cylinders. most of the propane in a cylinder is liquid, with gas in the space above the liquid level. when propane is released from the cylinder, the propane leaves the cylinder as a gas. propane gas is used as a fuel by mixing it with oxygen in the air and igniting the mixture, as represented by the balanced equation below.c3h8(g) + 5o2(g) → 3co2(g) + 4h2o() + 2219.2 kja small amount of methanethiol, which has a distinct odor, is added to the propane to consumers detect a propane leak. in methanethiol, the odor is caused by the thiol functional group (–sh). methanethiol, ch3sh, has a structure that is very similar to the structure of methanol.what is the correct structural formula for a molecule of methanethiol

In pqr m< p=60 m< q= 30 and m