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5 Written questions

5 Matching questions

  1. Physical Property
  2. Product
  3. Chemical Equation
  4. Decomposition
  5. Coefficient
  1. a A chemical reaction that breaks down compounds into simpler products
  2. b A characteristic of a pure substance that can be observed without changing it into another substance
  3. c 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
  4. d A substance formed as a result of a chemical reaction.
  5. e A short, easy way to show a chemical reaction, using symbols.

5 Multiple choice questions

  1. A characteristic of a pure substance that describes its ability to change into a different substance
  2. A change in a substance that does not change its identity
  3. A rapid reaction between oxygen and fuel that results in a fire
  4. A chemical reaction in which two or more simple substances combine to form a new, more complex substance
  5. A biological catalyst that lowers the activation energy of reactions in cells

5 True/False questions

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


  2. Conservation of MatterThe amount of one material in a certain volume of another material


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


  4. MatterA material that releases energy when it burns


  5. InhibitorA material that decreases the rate of a reaction


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