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5 Written questions

5 Matching questions

  1. Inhibitor
  2. Chemistry
  3. Fuel
  4. Physical Property
  5. Combustion
  1. a A characteristic of a pure substance that can be observed without changing it into another substance
  2. b A rapid reaction between oxygen and fuel that results in a fire
  3. c A material that decreases the rate of a reaction
  4. d The study of the properties of matter and how matter changes
  5. e A material that releases energy when it burns

5 Multiple choice questions

  1. A short, easy way to show a chemical reaction, using symbols.
  2. A substance formed as a result of a chemical reaction.
  3. The minimum amount of energy needed to get a chemical reaction started
  4. A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in the reaction
  5. A characteristic of a pure substance that describes its ability to change into a different substance

5 True/False questions

  1. ReactantA substance that undergoes change in a chemical reaction


  2. Physical ChangeA change in which on or more substances combine or break apart to form new substance


  3. EnzymeAnything that has mass and occupies space


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


  5. SynthesisA chemical reaction in which two or more simple substances combine to form a new, more complex substance