Unit 4 Test Review: Properties of matter, density, IMF

Unit 4 Review: Properties of matter, density, IMF

IntrAmolecularforces

• Type of Bond (weakest to strongest)

  • Nonpolar covalent

  • Polar covalent

  • Ionic

• Polar

  • Unequal sharing of electrons

  • Electronegativity difference >0.4 and <1.7

• ​Nonpolar

  • Equal sharing of electrons

  • Electronegativity difference 0.0 - 0.4

Polar vs Nonpolar

Multiple Choice

Classify the following molecule.

• polar

• nonpolar

Multiple Choice

What kind of solute will dissolve in a nonpolar solution? (Select all that apply)

• polar covalent solvent

• nonpolar covalent solvent

• ionic solvent

• metallic solvent

Multiple Select

What kind of solute will dissolve in a polar solution? (Select all that apply)

• polar covalent solvent

• nonpolar covalent solvent

• ionic solvent

• metallic solvent

Multiple Choice

... bonds happens when electrons are shared EVENLY between the two bonded atoms.

• Covalent polar

• Covalent nonpolar

• Ionic

• Metallic

• London Dispersion

• ​Dipole-dipole

• Hydrogen Bond

• Ion Dipole

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IntErmolecular forces

IMF and physical properties

STRONGER IMFs lead to:

• Higher viscosity (thickness of a liquid, molecules sticking to each other)

• Higher boiling point (change from liquid to gas)

• Higher melting point (change from solid to liquid)

Multiple Choice

Substance A is a liquid, Subtance B is a solid. Which has higher intermolecular forces?

• Substance A

• Substance B

Multiple Choice

If a substance has stronger intermolecular forces, what would be true of its viscosity?

• Viscosity would be lower

• Viscosity would be higher

• Viscosity is not affect by intermolecular forces

Multiple Choice

The stronger the intermolecular forces of a substance the _____________ the boiling point

• higher

• lower

Multiple Select

Select all of the Intermolecular Forces that water has.

• London dispersion forces

• Dipole-dipole

• Hydrogen bond

• Ion dipole

Multiple Choice

Which substance has the weakest intermolecular forces?

• Substance A, boiling point of 75 °C

• Substance B, boiling point of 105 °C

• Substance C, boiling point of 25 °C

• Substance d, boiling point of 45 °C

Multiple Choice

Which of the following will NOT have hydrogen bonding?

Multiple Choice

Which of the following will have the lowest melting point?

Multiple Choice

Hydrogen bonding is a special type of what force?

• London dispersion forces

• ion-dipole forces

• dipole-dipole forces

• covalent force

Multiple Choice

Which of these is not an intermolecular force?

• covalent bonding

• London dispersion forces

• hydrogen bonding

• dipole-dipole forces

Multiple Choice

Does CH₄ have hydrogen bonding?

• yes
• no

Multiple Choice

Type of intermolecular force present in I₂, Br₂, and Cl₂.

• dipole dipole

• H-bond

• London dispersion

• metallic

Multiple Choice

Which of the following factors plays an important role in the identification of specific intermolecular forces in a molecule?

• bond type
• density
• solubility
• molecular polarity

Physical - can be observed without changing the substance
Chemical - describe the ability to change into different substances

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Physical and Chemical Properties

• Intensive - doesn't change based on how much of a substance you have

• Extensive - does change based on how much you have

​

INtensive vs EXtensive physical properties

Multiple Choice

Physical properties....

• change the matter when studied

• can be observed and measured without changing the matter being studied

• include the ability to burn and rust

• are useless unless studied in a lab

Multiple Choice

______________________ can only be recognized when substances react or do not react chemically with one another.

• Physical properties

• Chemical properties

• Flammable properties

• Colorful properties

Multiple Choice

Which of the following is not a chemical property? 

• rusting 
• boiling 
• rotting 
• burning 

Multiple Choice

All of the following are examples of physical properties EXCEPT

• Density

• Heat conductivity

• pH (acidic or basic)

• Boiling point

Multiple Choice

This property changes as the amount of matter changes.

• Intensive

• Extensive

• Chemical

• Dense

Multiple Choice

Which of the following is an extensive property?

• Color

• Mass

• Odor

• Luster

Multiple Choice

8) Intensive or Extensive Property: Volume

• Intensive

• Extensive

Multiple Choice

9) Intensive or Extensive Property: Density

• Intensive

• Extensive

Multiple Choice

9) Intensive or Extensive Property: Malleability

• Intensive

• Extensive

Multiple Choice

What kind of physical property is this? Length

• intensive

• extensive

Density in an intensive physical property of matter

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Density

• Water displacement for volume of a solid

• Mass of a liquid

• Measuring lxwxh of a solid

​

Ways to find density

Multiple Choice

A bar of copper has a mass of 216g and a volume of 24 cm3. What is the density of copper?

• 9g/cm3

• 5184g/cm3

• .11g/cm3

• 322mL

Multiple Choice

An irregularly shaped piece of gold was lowered into a graduated cylinder holding a volume of water equal to 17 ml. The height of the water rose to 20 ml. If the mass of the gold was 27 g, what was its density?

• 9 g/mL
• 10.5 g/mL
• 6.5 g/mL
• 8 g/mL

Multiple Choice

Put the liquids in order from most dense to least dense?

• 4, 3, 2, 1
• 1, 2, 3, 4
• 3, 4, 2, 1, 
• 4, 3, 1, 2

Multiple Choice

Calculate the density of the rectangular prism

• 2 g/cm³

• 4 g/cm³

• 6 g/cm³

• 8 g/cm³

Multiple Choice

Use the density chart to identify the substance. If the substance has a volume of 5 cm³ and a mass of 52.5.

• lead

• aluminum

• silver

• water