the matter and the universe partial evaluation
TRANSCRIPT
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THE MATTER AND THE UNIVERSEPARTIAL EVALUATION
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QUESTION 1 Which one of the following is an
example of a physical change? A. iron rusting B. a steak cooking C. sugar dissolving in water D. a candle burning
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QUESTION 2 A physical change means that no new
substance is formed. A. true B. false
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QUESTION 3 Breaking water up by separating it into hydrogen
and oxygen is an example of a ... A. physical change. B. chemical change
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QUESTION 4 Melting and boiling causes a ...
A. physical change. B. chemical change.
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QUESTION 5 A change in size or shape is a ...
A.physical change. B. chemical change.
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QUESTION 6 A chemical change means that a new
substance with new properties is formed. A.true B. false
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QUESTION 7 The fact that sugar is white is a ...
A.physical property. B. chemical property.
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QUESTION 8 Iron rusts when exposed to air. This is
a ... A.physical property. B. chemical property.
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QUESTION 9 Which one of the following is NOT a
physical property of hydrogen? A.it is a gas B. it is explosive C.it is colourless D.it has no smell
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QUESTION 10 Which one of the following is not a
physical change? A. clothes drying in the dryer B. making a cup of coffee C. chopping wood D. boiling an egg
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QUESTION 11 Atoms in a liquid are farther apart than
the atoms in a gas. True False
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QUESTION 12 Which has the least energetic molecules
A. Solids B. Liquids C. Gases D. Plasmas
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QUESTION 13 What force pulls liquids towards the
ground? A. Pressure B. Temperature C. Gravity D. Centrifugal
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QUESTION 14 When a substance goes from being a
solid to a liquid, it is a... A. Chemical Change B. Physical Change
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QUESTION 15 Which of these choices will NOT change
the state of matter? A. Temperature B. Crushing a Crystal C. Pressure D. Electricity
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QUESTION 16 What is the density of a piece of wood
that has a mass of 25.0 grams and a volume of 29.4 cm3?
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QUESTION 17 A cup of gold colored metal beads was
measured to have a mass 425 grams. By water displacement, the volume of the beads was calculated to be 48.0 cm3. Given the following densities, identify the metal.
Gold: 19.3 g/mL Copper: 8.86 g/mL Bronze: 9.87 g/mL
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QUESTION 18 An ice cube measuring 5.80 cm by 5.80
cm by 5.80 cm has a density of 0.917 g/mL. What is the mass?
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QUESTION 19 A little aluminum boat (mass of 14.50 g)
has a volume of 450.00 cm3. The boat is place in a small pool of water and carefully filled with pennies. If each penny has a mass of 2.50 g, how many pennies can be added to the boat before it sinks?
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QUESTION 20 Gasoline is a non-polar liquid that will
float on water. 450 grams of gasoline is spilled into a puddle of water. If the density of gasoline is 0.665 g/mL, what volume of gasoline is spilled?