If the double bond is broken heterolytically, formal charge pairs result, as shown in the other two structures. The preferred charge distribution will have the positive charge on the less electronegative atom (carbon) and the negative charge on the more electronegative atom (oxygen).
Single malt Scotch. Single malt Scotch is single malt whisky made in Scotland. To be a single malt scotch the whisky must have been distilled at a single distillery using a pot still distillation process and made from a mash of malted grain. In Scotland, the only grain allowed to be used in a single malt whisky is barley.
Malt liquor. A 12oz (355mL) longneck beer bottle (left) and a 40oz (1183 mL) bottle of Malt Liquor. Malt liquor, in North America, is beer with high alcohol content. Legally, it often includes any alcoholic beverage with 5% or more alcohol by volume made with malted barley.