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5 Written questions

5 Matching questions

  1. compound
  2. catalyst
  3. "finished" reaction
  4. shift to the L
  5. solvent
  1. a -rate is constant (rate=0, beaker is not changing)
    -no more reactions possible bc forward and reverse reactions can occur
    -no more reactants
  2. b the substance that usually dissolves the solute *water
  3. c make more reactants and using more products
  4. d -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. e pure substance made from two or more elements and can be broken down into separate elements

5 Multiple choice questions

  1. 1 mol = 6.02 x 10^23
  2. -elements in group 2
  3. 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.
  4. making more product and using more reactants
  5. an equilibrium where changes are constant, but "cancel" eachother out

5 True/False questions

  1. complete reactionobvious when finished


  2. collision theory of particlesparticles react when they collide


  3. chemical reactionobvious when finished


  4. equilibrium# of moles/# of liters of soln

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


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


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