6.(06.06 MC) Explain the relationship between the rate of effusion of a gas and its molar mass.
Methane gas (CH) effuses 3.4 times faster than an unknown gas. Determine the molar mass of the unknown gas. Show your work or explain your answer, giving specific values used to
determine the answer. (5 points)
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pure substance: iron,copper

impure substance: water,charcoal

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.