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Which demonstrates a chemical change?
physical change
polarity
production of a solid
chemical change in which the ice is less dense than the liquid water
The heated air contracts as a physical change occurs.
change of state
The substance undergoes a physical change.
white sugar + clear acid = black solid
Which occurs when a precipitate forms during a chemical reaction?
physical change
polarity
production of a solid
chemical change in which the ice is less dense than the liquid water
The heated air contracts as a physical change occurs.
change of state
The substance undergoes a physical change.
white sugar + clear acid = black solid
Which best describes the type of change that occurs when liquid water freezes to become ice?
physical change
polarity
production of a solid
chemical change in which the ice is less dense than the liquid water
The heated air contracts as a physical change occurs.
change of state
The substance undergoes a physical change.
white sugar + clear acid = black solid
A marshmallow is made mostly of sugar and air. When heated in a microwave oven, a marshmallow increases in size to nearly twice its normal volume but does not produce any new subst
physical change
polarity
production of a solid
chemical change in which the ice is less dense than the liquid water
The heated air contracts as a physical change occurs.
change of state
The substance undergoes a physical change.
white sugar + clear acid = black solid
Which best describes a substance that changes from a liquid to a solid?
physical change
polarity
production of a solid
chemical change in which the ice is less dense than the liquid water
The heated air contracts as a physical change occurs.
change of state
The substance undergoes a physical change.
white sugar + clear acid = black solid
A sea creature releases a liquid into the ocean that reacts with the water to form a seashell. Which process does this represent?
physical change
polarity
production of a solid
chemical change in which the ice is less dense than the liquid water
The heated air contracts as a physical change occurs.
change of state
The substance undergoes a physical change.
white sugar + clear acid = black solid
When water boils, water vapor is produced and escapes into the air. Which best describes this change?
physical change
polarity
production of a solid
chemical change in which the ice is less dense than the liquid water
The heated air contracts as a physical change occurs.
change of state
The substance undergoes a physical change.
white sugar + clear acid = black solid
Liquids placed in a beaker will settle in specific layers. Which physical property of matter does this illustrate?
physical change
polarity
production of a solid
chemical change in which the ice is less dense than the liquid water
The heated air contracts as a physical change occurs.
change of state
The substance undergoes a physical change.
white sugar + clear acid = black solid
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