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5 Written questions

5 Matching questions

  1. solute
  2. absolute zero
  3. dynamic
  4. mole
  5. alkaline earth metals
  1. a an equilibrium where changes are constant, but "cancel" eachother out
  2. b -elements in group 2
  3. c 1 mol = 6.02 x 10^23
  4. d -273 degrees Celsius, 0 degrees Kelvin
  5. e the substance that is usually dissolved(sugar or salt)

5 Multiple choice questions

  1. -an additional chemical that is added
    -increases the rate of reaction by decreasing the activation energy
    -it is not consumed in the reaction and can be reused
  2. a subtance with 2 or more different types of particles inside of it
  3. -all on the left side of the staircase
  4. obvious when finished
  5. the substance that usually dissolves the solute *water

5 True/False questions

  1. endothermic-process that releases energy
    -energy is the product
    -usually, but not always, this raises
    *graph starts from high to low
    *activation energy is only first bump

          

  2. ways to increase the rate of reaction1. increase temperature
    2. increase pressure
    3. decrease volume
    4. increase # of particles

          

  3. halogens-elements in group 17

          

  4. semimetals/metalloids-located on the staircase

          

  5. nonmetal-all on the left side of the staircase

          

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