7. Jaysen placed an unknown liquid into a beaker, and
performed a series of changes to the temperature & pressure
of the substance. Which statement correctly demonstrated
how the particles changed?
A. He decreased the temperature & the particles began
moving slower; therefore, the liquid became a gas.
B. He increased the pressure & the particles began moving
slower; therefore, the liquid became a gas.
C. He decreased the pressure & the particles began moving
faster; therefore, the liquid became a solid.
D. He increased the temperature & the particles began
moving faster; therefore, the liquid became a gas.
Answers: 2
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The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder
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The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?
Answers: 1
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The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of
Answers: 2
7. Jaysen placed an unknown liquid into a beaker, and
performed a series of changes to the tempera...
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