Unit 5: Physical Properties Review

​Unit 5: Physical Properties Review

By Uriah Bocker

Match

Match the following

• Sublimation

• Deposition

• Condensation

• Evaporation

• Melting

Solid to Gas

Gas to Solid

Gas to Liquid

Liquid to Gas

Solid to Liquid

• Solid to Gas

• Gas to Solid

• Gas to Liquid

• Liquid to Gas

• Solid to Liquid

Unlike solids, the solubility of gas decreases with temperature.

​

Solubility Curves of Gases

Fill in the Blanks

The solubility of a gas

as the temperature of the solvent increases.

Phase Diagrams

Normal Melting/Boiling Points are at STP

• 101.3 kPa and 0 C

• Remember to think about what phase change is happening

  • boiling - liquid to gas

  • melting - solid to liquid

Open Ended

What phase is present at 90 C and 20 kPa?

Molecular (covalent) are the weakest. Covalent Network are the strongest (it will take a lot of energy to break them apart)

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Bond Types

Reorder

Reorder the following from lowest boiling point to highest

• Molecular (covalent)

• Ionic

• Metallic

• Covalent Network

1

2

3

4

• 1
• 2
• 3
• 4

Open Ended

Why is ice less dense than liquid water?

Mixture of two things. (one must be metal)
Usually better than the original.

​​Alloy

Steel is a mixture of iron and carbon. Iron is a softer metal, adding carbon makes it stronger and more durable.

Steel

​Highly ordered and structured

​​Crystal Solids

Irregular - lack order

Amorphous Solids

Ionic and some acids can COMPLETELY dissolve in water into ions, allowing them to conduct electricity. (Look for metals)

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Electrolytes

Categorize

Options (6)

KCl

MgI

LiCl

C6H12O6

CCl4

Cl2

Each of the given substances acts as an electrolyte or a non-electrolyte. Based on this characteristic behavior, label each as E (electrolyte) or NE (non-electrolyte)

Electrolyte

Non-electrolyte

Categorize

Options (4)

Sodium & Bromine

Carbon & Fluorine

Magnesium & Oxygen

Chlorine & Iodine

Predict whether an ionic or molecular compound forms when the following elements combine:

Ionic

Covalent

Multiple Choice

What happens to gas particles within a closed container when the temperature increases?

• The kinetic energy of the particles decreases

• The kinetic energy of the particles increases

• The kinetic energy of the particles stays the same

• The kinetic energy of the particles decreases, then increases

Multiple Choice

Water’s high surface tension allows insects called water striders to stand on the surface of water. What would you expect to happen to a water strider if you poured detergent, a surfactant, into the water that the water strider is standing on?

• It would sink into the water

• It would move over the water more easily

• It would be stuck to the same spot in the water

• It would slip and slide over the surface of the water

Dropdown

Solid particles exhibit only ​

Select answer

motion, As heat is added and the sample becomes a liquid, ​

Select answer

motion is added, and upon its change to gas, ​

Select answer

motion is added.