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5 Written questions

5 Matching questions

  1. molarity
  2. absolute zero
  3. chemical reaction
  4. nonmetal
  5. solute
  1. a a 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
  2. b -273 degrees Celsius, 0 degrees Kelvin
  3. c the substance that is usually dissolved(sugar or salt)
  4. d # of moles/# of liters of soln

    *molarity abbreviated with M
    *when its a gas: 1mol/22.4L of soln
  5. e -all on the right side of the staircase

5 Multiple choice questions

  1. the mass is grams of 1 mole of particles of a substance
  2. -elements in group 18
  3. the # of atoms of each element must be the same in both the reactants and the products of a chemical reaction
  4. -elements in group 2
  5. 1 mol = 6.02 x 10^23

5 True/False questions

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

          

  2. compoundthe substance that usually dissolves the solute *water

          

  3. solutionthe substance that is usually dissolved(sugar or salt)

          

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

          

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