What is the boiling of point of ethanoic acid at 60 kPa? A) 90 C
B) 110 C
C) 102 C
D) 85 C

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.

At element makes up all organic compounds?