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5 Written Questions

5 Matching Questions

  1. Synthesis
  2. Activation energy
  3. Chemical Reaction
  4. Fire Triangle
  5. Closed System
  1. a Oxygen,Fuel,Heat
  2. b A Chemical Reaction in which two or more simple substances combine to form a new, more complex substance
  3. c A change in matter that produces one ore more new substances
  4. d Matter is not allowed to enter or leave
  5. e The minimum amount of energy needed to start a chemical reaction

5 Multiple Choice Questions

  1. The substances you have at the beginning of a chemical equation
  2. Star Pellet
  3. The number placed in front of a chemical formula in an equation
  4. The amount of a substance in a given volume
  5. a shorthand way to use chemical symbols and numbers to describe a chemical reaction

5 True/False Questions

  1. InhibitorA material used to decrease the rate of a reaction

          

  2. Physical ChangeAny Change that alters the form or appearance of a substance but that doesn't make the substance into another substance

          

  3. PrecipitateA solid that forms from solution during a chemical reaction

          

  4. ProductsThe new materials at the end of a chemicle reaction

          

  5. FuelAnything that has mass and takes up space

          

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