The base peak in the mass spectrum of 2,2,4−trimethylpentane [(CH3)3CCH2CH(CH3)2] occurs at m/z = 57. Draw the ion responsible for this peak. draw structure ... Why is this ion is the most abundant fragment? 3° carbocations are the most stable of all carbocations. The two ions that are the most similar in mass will be the most stable. 2° carbocations have the most stable resonance forms. 1° carbocations are the most stable.

alfred von schlieffen, german army chief of staff, was given instructions to devise a strategy that would be able to counter a joint attack. in december, 1905, he began circulating what later became known as the schlieffen plan. schlieffen argued that if war took place it was vital that france was speedily defeated.

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.