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5 Written questions

5 Matching questions

  1. solute
  2. compound
  3. collision theory of particles
  4. exothermic
  5. nonmetal
  1. a -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. b particles react when they collide
  3. c the substance that is usually dissolved(sugar or salt)
  4. d -all on the right side of the staircase
  5. e pure substance made from two or more elements and can be broken down into separate elements

5 Multiple choice questions

  1. 1. increase temperature
    2. increase pressure
    3. decrease volume
    4. increase # of particles
  2. -273 degrees Celsius, 0 degrees Kelvin
  3. -rate is constant (rate=0, beaker is not changing)
    -no more reactions possible bc forward and reverse reactions can occur
    -no more reactants
  4. the substance that usually dissolves the solute *water
  5. -changing equilibrium
    idea: if you have reaction @ chemical equilibrium, w/e you do, equilibrium will adjust to reduce whatever you added

5 True/False questions

  1. semimetals/metalloids-located on the staircase

          

  2. molar volume of a gas-at STP (standard temperature and pressure) *0 degrees Celsius and 1 atm
    - 1 mol has a volume of 22.L

          

  3. 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

          

  4. catalyst-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

          

  5. mixturea subtance with 2 or more different types of particles inside of it