Birds such as ducks, geese, and swans have greater densities than water, yet they are able to sit on its surface. explain this ability, noting that water does not wet their feathers and that they cannot sit on soapy water. give the examples of applications of capillary action search and share the video with related topic form unit #8.

Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.