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5 Written questions

5 Matching questions

  1. Dehydration reaction
  2. Chemical change
  3. Polysaccharides
  4. Element
  5. Catalyst
  1. a A substance that alters the speed of a chemical reaction but is not used up in the process.
  2. b A chemical reaction in which molecules combine by removing water.
  3. c Carbohydrates that are made up of more than two monosaccharides.
  4. d A change that alters the makeup of the elements or molecules of a substance.
  5. e A collection of atoms that all have the same number of protons.

5 Multiple choice questions

  1. A change that affects the appearance but not the chemical make-up of a substance.
  2. A measurement of how much solute exists within a certain volume of solvent.
  3. A lipid made from fatty acids that have no double bonds between carbon atoms.
  4. Simple carbohydrates that contain 3 to 10 carbon atoms.
  5. Chemicals that result from atoms linking together.

5 True/False questions

  1. OsmosisThe tendency of a solvent to travel across a semipermeable membrane into areas of higher solute concentration.

          

  2. DisaccharidesCarbohydrates that are made up of two monosaccharides.

          

  3. HydrophobicLacking any affinity to water.

          

  4. ModelAnything that has mass and takes up space.

          

  5. IsomersAnything that has mass and takes up space.