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which of the following is not a characteristic of an ideal gas?
a. high density. b. compressibility c. fills container completely
d. transparency
Which of the following is NOT a characteristic of liquids?
A. no significant attraction between particles
B. less fluid than gases
C. more dense than gases
D. exhibits viscosity
Which of the following is an example of physical change?
A. Mixing baking soda and vinegar together, and this causes
bubbles and foam.
B. A glass cup falls from the counter and shatters on the ground.
C. Lighting a piece of paper on fire and the paper burns up and
leaves ashes.
D. Baking a birthday cake for your mother.
Which of the following is an example of a chemical reaction?
A.water evaporating from a pot on a hot stove
B.sand being removed from sea water by filtration
C.A spoonful of sugar dissolving in a glass of water
D.A water solid forming when two clear liquids are poured together
which of the following is an example of chemical change when heat is applied
A. Burning of wood
B. Cutting clothes
C. Freezing of water
D. Sharpening a pencil
Sagot :
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