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Chapter 6 Science Vocab Test

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5 Written Questions

5 Matching Questions

  1. Open System
  2. Physical Change
  3. Chemical Equation
  4. Decomposition
  5. Combustion
  1. a A system in which matter can enter from or escape to the surrounding
  2. b A short, easy way to show a chemical reaction, using symbols.
  3. c A chemical reaction that breaks down compounds into simpler products
  4. d A rapid reaction between oxygen and fuel that results in a fire
  5. e A change in a substance that does not change its identity

5 Multiple Choice Questions

  1. A reaction that releases energy in the form of heat
  2. A substance formed as a result of a chemical reaction.
  3. A substance that undergoes change in a chemical reaction
  4. The study of the properties of matter and how matter changes
  5. A material that decreases the rate of a reaction

5 True/False Questions

  1. CatalystA substance that undergoes change in a chemical reaction

          

  2. ReplacementA reaction in which one element replaces another in a compound or when two elements in different compounds trade places

          

  3. ConcentrationThe amount of one material in a certain volume of another material

          

  4. EnzymeA biological catalyst that lowers the activation energy of reactions in cells

          

  5. Chemical ChangeA change in a substance that does not change its identity

          

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