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5 Written Questions

5 Matching Questions

  1. halogens
  2. shift to the L
  3. metals
  4. endothermic
  5. solution
  1. a make more reactants and using more products
  2. b -elements in group 17
  3. c -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
  4. d a mixture where the substances are dissolved
  5. e -all on the left side of the staircase

5 Multiple Choice Questions

  1. -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. -elements in group 1 except Hydrogen
  3. # of moles/# of liters of soln

    *molarity abbreviated with M
    *when its a gas: 1mol/22.4L of soln
  4. -all on the right side of the staircase
  5. 1 mol = 6.02 x 10^23

5 True/False Questions

  1. solvent1 mol = 6.02 x 10^23

          

  2. dynamican equilibrium where changes are constant, but "cancel" eachother out

          

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

          

  4. chemical reactiona type of change, in which, macroscopically: one or more different substances form that were not there originally; and, nanoscopically:one or more particles becomes one or more different particles that were not there originally -- original substances are no longer present

          

  5. Law of Conservation of Massthe # of atoms of each element must be the same in both the reactants and the products of a chemical reaction

          

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