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5 Written questions

5 Matching questions

  1. ways to decrease the rate of reaction
  2. "finished" reaction
  3. halogens
  4. alkaline earth metals
  5. La Chatelier's Principle
  1. a -elements in group 17
  2. b 1. decrease temperature
    2. decrease pressure
    3. increase volume
    4. decrease # of particles
  3. c -rate is constant (rate=0, beaker is not changing)
    -no more reactions possible bc forward and reverse reactions can occur
    -no more reactants
  4. d -elements in group 2
  5. e -changing equilibrium
    idea: if you have reaction @ chemical equilibrium, w/e you do, equilibrium will adjust to reduce whatever you added

5 Multiple choice questions

  1. During a chemical reaction, the reactants (starting chemicals) interact when they are brought together. Sometimes other conditions are needed (heat, a catalyst, etc) and sometimes the reaction will be spontaneous.

    During the reaction, the chemical bonds of one or more of the reactants. change and are reconfigured/combined with atoms or parts of other molecules from other reagents and form new product chemicals. All of the atoms of the reactants are preserved in the products, just in the form of different reaction product compounds. Heat may also be consumed or generated by the reaction. The products likely have different properties than the reactants.
  2. the # of atoms of each element must be the same in both the reactants and the products of a chemical reaction
  3. -located on the staircase
  4. the substance that is usually dissolved(sugar or salt)
  5. -elements in group 1 except Hydrogen

5 True/False questions

  1. shift to the Lmake more reactants and using more products


  2. noble gasesthe mass is grams of 1 mole of particles of a substance


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


  4. exothermic-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


  5. molar volume of a gasthe mass is grams of 1 mole of particles of a substance