1(a). Chemists often use two different structures to represent a molecule of benzene, as shown below. structure
structure B
Describe, with the aid of suitable diagrams showing orbital overlap, the difference in bonding between structure A and structure B.
in your answer, you should use appropriate technical terms, spelled correctly.

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.

Type the letter that represents the correct location for each particle type below.

What is the independent variable in this investigation? mass volume sample number substance density