Estimate the specific gravities (gas) for methane and propane. Their molecular weights are shown in App. E. (Commercial natural gas and commercial propane are mostly methane and propane, with small amounts of other substances, which may be ignored for this problem.) Which is more dangerous, a natural gas leak or a propane leak? Why?

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An unknown gas effuses at a rate of 2.0 times the rate of Cl₂. What is the molar mass of the unknown gas?

There are four identical balloons each having 10.0 g of a disimilar gas. The balloon containing which gas has the highiest volume? O A. H2 ОВ. Не OC. Ne O D. O2 O E. All have the same volume.