NAME: ________________________

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5 Written Questions

5 Matching Questions

  1. Precipitate
  2. Chemical Equation
  3. Synthesis
  4. Inhibitor
  5. Reactant
  1. a A material that decreases the rate of a reaction
  2. b A short, easy way to show a chemical reaction, using symbols.
  3. c A solid that forms from a solution during a chemical reaction
  4. d A substance that undergoes change in a chemical reaction
  5. e A chemical reaction in which two or more simple substances combine to form a new, more complex substance

5 Multiple Choice Questions

  1. A substance formed as a result of a chemical reaction.
  2. The amount of one material in a certain volume of another material
  3. The minimum amount of energy needed to get a chemical reaction started
  4. A material that increases the rate of a reaction by lowering the activation energy
  5. A change in a substance that does not change its identity

5 True/False Questions

  1. Exothermic ReactionA reaction that absorbs energy in the form of heat


  2. Open SystemA system in which matter can enter from or escape to the surrounding


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


  4. Conservation of MatterThe principle stating that matter is not created or destroyed during a chemical reaction


  5. MatterAnything that has mass and occupies space


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