In this passage, the quotation is well-introduced. The author of the quotation is identified, as is the quotation's relation to the previous statement. From the introduction, the reader can detect the contrast between the quotation and the first sentence of the paragraph. Achieving Variety when Introducing Quotations.
(also cinnamic aldehyde, Î²-phenylacrolein), C 6 H 5 CH=CHCHO, a fatty-aromatic unsaturated aldehyde; a colorless liquid with the characteristic odor of cinnamon. It has a boiling point of 252Â°C and a density of 1.110 g/cm 3 (at 20Â°C). It is poorly soluble in water and very soluble in alcohol and ether. Cinnamaldehyde is a component of many essential oils (cinnamon oil and others).
Ethanol is soluble in water because the-OH group of ethanol (CH3CH2OH) can form hydrogen bonds with water.Hydrogen bonding occurs when a very electronegative molecule like O â¦ , N, F are bonded to molecules like hydrogen. For this example, I'll talk about groups that have-NH, -SH, -OH.herefore, they are too different from each other and are not miscible... Old (not so good) Answer Hexane is not soluble in water because Hexane is a Nonpolar solvent while water is Polar solvent. Like dissolves like.