Which list gives nonmetals that are found in their elemental forms in nature? (a) neon, phosphorus, fluorine (b) helium, hydrogen, iodine (c) nitrogen, oxygen, sulfur (d) oxygen, chlorine, phosphorus?

The density of an unknown gas at 98°c and 740 mmhg is 2.50 g/l. what is the molar mass of the gas with work showed?

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

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