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5 Written questions

5 Matching questions

  1. ways to increase the rate of reaction
  2. alkali metals
  3. molarity
  4. molar mass
  5. compound
  1. a pure substance made from two or more elements and can be broken down into separate elements
  2. b 1. increase temperature
    2. increase pressure
    3. decrease volume
    4. increase # of particles
  3. c the mass is grams of 1 mole of particles of a substance
  4. d -elements in group 1 except Hydrogen
  5. e # of moles/# of liters of soln

    *molarity abbreviated with M
    *when its a gas: 1mol/22.4L of soln

5 Multiple choice questions

  1. -at STP (standard temperature and pressure) *0 degrees Celsius and 1 atm
    - 1 mol has a volume of 22.L
  2. when there stops being an observable change in a system, either static or dynamic
  3. 1 mol = 6.02 x 10^23
  4. particles react when they collide
  5. -process that absorbs energy
    -energy is the reactant
    -usually, but not always, it lowers the temperature of the surroundings
    *graph starts from low to high
    *activation energy is the entire graph

5 True/False questions

  1. shift to the Lmaking more product and using more reactants

          

  2. mixturethe substance that is usually dissolved(sugar or salt)

          

  3. "finished" reactionobvious when finished

          

  4. exothermic-process that absorbs energy
    -energy is the reactant
    -usually, but not always, it lowers the temperature of the surroundings
    *graph starts from low to high
    *activation energy is the entire graph

          

  5. absolute zero-273 degrees Celsius, 0 degrees Kelvin

          

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