Draw the aldol and enone structures for the condensation of: 1. two molecules of butanal
2. two molecules of acetophenone
3. one molecule of acetophenone with one molecule of benzaldehyde

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)

Asolid that forms and separates from a liquid mixture is called