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5 Written Questions

5 Matching Questions

  1. Physical Change
  2. Precipitate
  3. Matter
  4. Catalyst
  5. Endothermic Reaction
  1. a A material that increases the rate of a reaction by lowering the activation energy
  2. b A change in a substance that does not change its identity
  3. c Anything that has mass and occupies space
  4. d A solid that forms from a solution during a chemical reaction
  5. e A reaction that absorbs energy in the form of heat

5 Multiple Choice Questions

  1. A short, easy way to show a chemical reaction, using symbols.
  2. A characteristic of a pure substance that describes its ability to change into a different substance
  3. A system in which no matter is allowed to enter or leave
  4. The study of the properties of matter and how matter changes
  5. The minimum amount of energy needed to get a chemical reaction started

5 True/False Questions

  1. ConcentrationA rapid reaction between oxygen and fuel that results in a fire

          

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

          

  3. CoefficientA substance that undergoes change in a chemical reaction

          

  4. InhibitorA material that decreases the rate of a reaction

          

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

          

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