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5 Written Questions

5 Matching Questions

  1. Catalyst
  2. Hydrogen bond
  3. Saturated fat
  4. Physical change
  5. Isomers
  1. a A substance that alters the speed of a chemical reaction but is not used up in the process.
  2. b A lipid made from fatty acids that have no double bonds between carbon atoms.
  3. c Two different molecules that have the same chemical formula.
  4. d A change that affects the appearance but not the chemical make-up of a substance.
  5. e A strong attraction between hydrogen atoms and certain other atoms (usually oxygen or nitrogen) in specific molecules.

5 Multiple Choice Questions

  1. The tendency of a solvent to travel across a semipermeable membrane into areas of higher solute concentration.
  2. Anything that has mass and takes up space.
  3. A lipid made from fatty acids that have at least one double bond between carbon atoms.
  4. A membrane that allows some molecules to pass through but does not allow other molecules to pass through.
  5. The process by which living organisms produce larger molecules from smaller ones.

5 True/False Questions

  1. HydrophobicBreaking down complex molecules by the chemical addition of water.

          

  2. ConcentrationA substance that alters the speed of a chemical reaction but is not used up in the process.

          

  3. ModelAnything that has mass and takes up space.

          

  4. DiffusionThe tendency of a solvent to travel across a semipermeable membrane into areas of higher solute concentration.

          

  5. ElementA collection of atoms that all have the same number of protons.

          

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