Five isomeric alkenes a-e each undergo catalytic hydrogenation to give 2-methylpentane. the ir spectra of these five alkenes have the following key absorptions (in cm-1): compound a: 912 (s), 994 (s), 1643 (s), 3077 (m) compound b: 833 (s), 1667 (w), 3050 (weak shoulder on c-h absorption) compound c: 714 (s), 1665 (w), 3010 (m) compound d: 885 (s), 1650 (m), 3086 (m) compound e: 967 (s), no absorption 1600-1700, 3040 (m) the alkene structures are given below. identify each compound.

What is the solubility of substance?

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both