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).
Making the world better, one answer at a time. Propanone and propanal are soluble in water because they have polar functional groups. In propanone, the ketone functional group is polar.Water is also polar, and therefore will dissolve propanone. In propanal, the aldehyde functional group is polar.aking the world better, one answer at a time. Propanone and propanal are soluble in water because they have polar functional groups. In propanone, the ketone functional group is polar.