10. The volume of a gas is reduced from 4 L to 0.5 L while the temperature is held constant. How does the pas pressure change?
It increases by a factor of four.
It increases by a factor of two.
It increases by a factor of eight.
It decreases by a factor of eight.
and
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What happens when the temperature of a solution increases?

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

What type of electromagnetic waves does the human eye see as the colors red blue or green a visible light waves b radio waves c infrared waves d microwaves