Draw the structure of methionine at pH 9.5. Click and drag to start drawing a structure.

Chemistry please help with retrosynthesis

DOWN 4. Hydrolyzed product of protein; common source of nitrogen DOWN 13. Type of medium with known quantities of chemically pure compounds  ACROSS 15. UV radiation is a type of _______ radiation.

draw the step by step curly arrow mechanism showing exactly where the bonds break and form.

Complete the mechanism for the formation of the major species at equilibrium for the reaction of 2-methylpropanal in water and catalytic aqueous acid. Make sure to include any missing atoms, bonds, charges, nonbonding electrons, and curved arrows. Then, classify the final product. Step 1: add curved arrows. Step 2: add curved arrows. Select Draw Rings More Erase Select Draw Rings More Erase H H H - 0 - :0- H H :0: H H :0- H

Step 5: add curved arrows. Step 6: complete the structure and add curved arrows. Select Draw Rings More Erase Select Draw Rings More Erase H H -H,0 : 0 : :0 : H H - 0 H H H

Please match the silicone organofunctional group with its properties.                                                                        Hydroxyl                                                                        Amino                                                                        Phenyl                                                                        Alkyl                                                                        Polyether A. Emulsifier B. Shine and softness to hair and skin C. Water and transfer resistance D. Anti-frizz E. Hair Combability

unsaturation test for oil - add 5 drops of each t oil with 1 drop of alcoholic iodine solution - observe the color of each Coconut oil -- > Cotton-seed oil -- > Linseed oil -- > Olive oil -- >

Please show step by step how to do a nomenclature

1. Name the common amino acids that contain an aromatic ring. Enter your answers in alphabetical order separated by commas.     2. Name the common amino acids that contain sulfur. Enter your answers separated by commas.   3. Name the common amino acids that are alcohols. Enter your answers separated by commas.    4. Name the common amino acids that have alkyl-group side chains. Enter your answers separated by commas.