States of Matter
molecules colliding with the wall of the container
Changing from a solid directly to a gas is called
Sublimation
A substance that has less than the maximum amount of solute.
Unsaturated
What property of water allows bugs to walk on top?
Surface tension
Which type of solid has the highest melting points and are very hard because they are one very large molecule?
Covalent network solid
Raise temp, decrease volume, add particles
What happens to the temperature of a substance during a phase change?
Stays constant
A solution that contains more solute than it theoretically should be able to hold.
What property of water causes potholes in Mn roads?
Expands when it freezes (less dense as solid)
What type of solid is made from a metal and a nonmetal?
Ionic solid
What type of solid does not conduct electricity in water and has a low melting point?
Molecular solid
Weak forces (molecular or dispersion)
Heat the water
Compared to other molecules its size, water's boiling point is
Higher
What type of solid can conduct electricity when dissolved in water or melted but not as a solid?
Ionic solid
Convert 250 kPa to atm
2.5 atm
The point on a phase diagram where all three phases can exist in equilibrium.
Triple point
What should you do to your pop to make it stay fizzy longer after it is opened?
Cool it down
What property of water makes water bead up on greasy pan?
Surface tension
What do you call the same element that can take different shapes?
Allotrope
Give two parts of the Kinetic Theory of Gases
Made of small round particles with almost no volume, no attractive forces, do not lose energy when collide
What happens to the boiling point of a liquid that is in a pressure cooker?
Increases
If the solubility of a gas in water at 25° C is 15 mg/L at 760 mm Hg, at what pressure will the solubility be 20 mg/L?
1013 mm Hg
Water can dissolve what kinds of solutes?
Polar or ionic
What is the only type of solid that can conduct electricity as a solid?
Metallic solid