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Mass and Change

Quiz by Kristy Roberts

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17 questions
Show answers
  • Q1
    Mass is...
    the amount of particles in an object
    the amount of space an object takes up
    how closely packed together the particles are
    all of the answers are true
    30s
  • Q2
    What is a precipitate?
    A 0.1M solution
    An insoluble substance that can form when two substances are mixed together
    A soluble substance that can form when two substances are mixed together
    Condensation that forms on a beaker
    30s
  • Q3
    Does gas have mass?
    Sometimes
    Only when it is warm
    Yes
    No
    30s
  • Q4
    In a perfect world, where no errors can occur, what should have happened with the mass of burning steel wool lab?
    The mass should have stayed the same
    The mass should have decreased
    The mass should have increased
    30s
  • Q5
    When an object loses mass it is really losing ____________.
    precipitate
    volume
    particles
    size
    30s
  • Q6
    In a perfect world, where no errors can occur, what should have happened with the mass of dissolved Alka-Seltzer lab?
    The mass should have increased
    The mass should have stayed the same
    The mass should have decreased
    30s
  • Q7
    If you burned a piece of copper metal over a Bunsen burner what should happen with the mass of the copper metal and why?
    The mass should stay the same because nothing will happen to the copper, it will just get hot
    The mass should increase because you are adding gas particles
    The mass should decrease because you are melting the copper
    The mass should decrease because you are burning the copper
    30s
  • Q8
    Which of the following labs should have the same results? (assume no errors occurred)
    Burning Steel Wool, Ice & Water, Dissolved Alka-Seltzer
    Steel Wool, Ice & Water, Precipitate, Dissolved Alka-Seltzer
    Dissolved Sugar and Dissolved Alka-Seltzer
    Steel Wool, Ice & Water, Precipitate, Dissolved Sugar
    30s
  • Q9
    The Law of Conservation of Mass states that...
    Mass can disappear and reappear at any given time
    Mass cannot be created or destroyed
    Solids and Liquids have mass but gas does not
    Mass can be created but not destroyed
    30s
  • Q10
    Two clear liquids were mixed in a beaker at 5C. The resulting mixture remained homogeneous. After a few seconds, bubbles began to form and float to the surface of the beaker. After several minutes, the entire solution equilateral to room temperature . After several hours, the volume of the solution decreased by several milliliters. Which indicates that a chemical change occurred?
    The solution reached room temperature
    The liquids remained homogeneous after being mixed
    The volume of the solution decreased over time
    The solution released gas bubbles
    30s
  • Q11
    Which of the following is NOT a physical property of helium?
    It is nontoxic
    It almost always exists as a gas
    It has extremely low reactivity
    It will not form diatomic molecules
    30s
  • Q12
    Which of the following is a physical property of rubbing alcohol?
    It releases heat during combustion
    It is a clear liquid
    It is mildly acidic
    It is flammable
    30s
  • Q13
    In a perfect world, where no errors can occur, what should have happened with the mass of steel wool lab?
    The mass should have increased
    The mass should have stayed the same
    The mass should have decreased
    30s
  • Q14
    In a perfect world, where no errors can occur, what should have happened with the mass of ice and water lab?
    The mass should have decreased
    The mass should have increased
    The mass should have stayed the same
    30s
  • Q15
    In a perfect world, where no errors can occur, what should have happened with the mass of precipitate lab?
    The mass should have stayed the same
    The mass should have decreased
    The mass should have increased
    30s

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