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6. Saturated molecules, found in butter and animal fats, have some double bonds between the carbon atoms.
7. Which pair of chemicals, when warmed together, would produce an ester?
- Methanol and ethanoic acid
- Butane and ethanol
- Glycerol and water
- Sodium hydroxide and methanoic acid
8. Fats and oils are esters of glycerol and fatty acids.
9. Ethanol has a lower boiling point than water, as...
- the ethanol molecules mix well with water.
- there are weak forces of attraction between the hydrocarbon parts of the ethanol molecules.
- the -OH groups in the ethanol molecules have a tendency to cling together.
- the ethanol molecules can easily lose a hydrogen atom.
10. Many carboxylic acids have unpleasant smells, which are responsible for taste of rancid butter.