States of Matter
Phase Changes
Solubility
Water
Misc
100
Gas pressure is caused by

molecules colliding with the wall of the container

100

Changing from a solid directly to a gas is called

Sublimation

100

A substance that has less than the maximum amount of solute.

Unsaturated

100

What property of water allows bugs to walk on top?

Surface tension

100

Which type of solid has the highest melting points and are very hard because they are one very large molecule?

Covalent network solid

200
Two ways you can increase the pressure of a gas

Raise temp, decrease volume, add particles

200

What happens to the temperature of a substance during a phase change?

Stays constant

200

A solution that contains more solute than it theoretically should be able to hold.

Supersaturated
200

What property of water causes potholes in Mn roads?

Expands when it freezes (less dense as solid)

200

What type of solid is made from a metal and a nonmetal?

Ionic solid

300

What type of solid does not conduct electricity in water and has a low melting point?

Molecular solid

300
Sublimation occurs in substances held together by what kinds of forces?

Weak forces (molecular or dispersion)

300
If you want your kool-aid to be extra sweet, how could you get more sugar to dissolve?

Heat the water

300

Compared to other molecules its size, water's boiling point is

Higher

300

What type of solid can conduct electricity when dissolved in water or melted but not as a solid?

Ionic solid

400

Convert 250 kPa to atm

2.5 atm

400

The point on a phase diagram where all three phases can exist in equilibrium.

Triple point

400

What should you do to your pop to make it stay fizzy longer after it is opened?

Cool it down

400

What property of water makes water bead up on greasy pan?

Surface tension

400

What do you call the same element that can take different shapes?

Allotrope

500

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

500

What happens to the boiling point of a liquid that is in a pressure cooker?

Increases

500

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

500

Water can dissolve what kinds of solutes?

Polar or ionic

500

What is the only type of solid that can conduct electricity as a solid?

Metallic solid