As the pressure of a system changes, boiling points can change in what direction? (Increase, Decrease, Both Neither?)
Neither
In which state are the particles of matter very close in an organized way?
Solid
Explain how a puddle of water disappears on a sunny day
The liquid water is heated by the sun. The liquid water evaporates and changes to water vapor.
Which state of matter does this picture represent?
Gas
In which state are the particles of matter NOT organized and move very quickly?
Gas
Give one example of sublimation
Dry ice, Air fresheners, moth balls
Give one example of condensation
Morning dew, foggy mirror, formation of clouds in the sky
Give one example of deposition
Frost
In which state of matter do molecules slide past each other?
Liquid
What can cause matter to change states?
Adding / removing energy
Condensation occurs when water vapor _____ and changes into liquid water. [A. gains heat energy] [B. loses heat energy]
B
What is the freezing point?
0°C or 32°F
Changing from a solid to a gas is called....
Sublimation
Which state of matter does this picture represent?
Liquid
Changing from a gas to a solid is called....
Deposition
What is the melting point?
100°C or 212°F