Draw the neutral major organic product when pentanoic anhydride & 2 equivalents of dimethyl amine [HN(CH3)2] react given that one equivalent of amine acts as the nucleophile and the other equivalent of amine acts as a base (relevant data: ammonium ion has a pKa ~ 10 and the carboxylic acid has a pKa ~ 5.)Input the SMILES string generated via the JSME editor.

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Which substance has non polar covalent bonds

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.