Identify which of the following structures are a pair of isomers. A) I and II B) I and II C) Il and III IV D) Il and IV E) III and IV

Determine the structures of the missing organic molecules in the following reaction: Y II OH X + H₂O H+ H* OH Note: Molecules that share the same letter have the exact same structure. In the drawing area below, draw the skeletal ("line") structures of the missing organic molecules X and Y. You may draw the structures in any arrangement that you like, so long as they aren't touching. Click and drag to start drawing a structure. C X :0 Ś m c+

Please help with all three.

Are the following two reactions valid methods of synthesizing the same organic compound?

"Waterproof" nylon garments have a coating to prevent water from penetrating the hydrophilic fibers. The structure of a common nylon is shown below. H. H. Nylon-6,6 1st attempt See Periodic Table O See Hint Which structural features/groups in nylon-6,6 make it hydrophilic? Groups (5 items) (Drag and drop into the appropriate area below) Cof CH2 Nof NH Hof NH Hof CH2 O of C=O Categories Hydrophilic Hydrophobic Drag and drop here Drag and drop here