CHEM 350 Midterm: Minn State Moorhead CHEM 350 Mechanism Practice 341-Answers

• School: Minnesota State University-Moorhead
• Department: Chemistry
• Course: CHEM 350
• Professor: All

Document Summary

See page 3 for a summary of mechanisms principles. 1: draw arrows for each of the steps in the following reactions. I won"t require this on tests, but you may find it useful to include all lone-pairs on atoms that react. Page 2: draw the arrow(s) for each of these steps. Some arrow-pushing guidelines: arrows follow electron movement. 4: some rules for the appearance of arrows, the arrow must begin from the electron source. Arrow must emanate from that atom or one of it"s associated bonds. There are two more positive transactions: when an anion becomes neutral. In this case, an arrow will emanate from the atom. The atom has donated a lone pair which becomes a bond pair: when a neutral atom becomes cationic. Ordinarily the arrow will have started from a bond and will point to the atom: when bonds change, but formal charge doesn"t change, a substitution is.