Copy of Unit 7 Notes

Multiple Choice

Freezing

• Solid to gas
• Liquid to solid
• Gas to solid
• Liquid to gas

Multiple Choice

Boiling

• liquid to gas
• gas to solid
• gas to liquid
• solid to liquid

Multiple Choice

Which state of matter has tightly packed molecules?

• solid
• liquid
• gas

Multiple Choice

Which state of matter has a definite shape?

• solid
• liquid
• gas

Multiple Choice

What is happening when my ice cream changes from a solid to a liquid?

• freezing
• melting
• burning
• evaporation

Multiple Choice

Define a liquid.

• Indefinite shape, indefinite volume
• Definite shape, definite volume
• Found in stars
• Definite volume, indefinite shape

Multiple Choice

What term describes a solid changing to a gas?

• Deposition
• Sublimation
• Evaporation
• Freezing

Multiple Choice

Particles (molecules) in a ______________________ have more energy than the other states of matter.

• gas
• solid
• liquid

Multiple Choice

Who was the first to design equipment to show that the atmosphere exerted pressure?

• Isaac Newton

• Albert Einstein

• Evangelista Torricelli

• Galileo Galilei

Multiple Choice

What causes the mercury to rise in a barometer?

• Temperature increase

• Atmospheric pressure

• Wind speed

• Humidity

Multiple Choice

What is the psi equivalent of 1 atm?

• 101.3 psi

• 760 psi

• 14.7 psi

• 100 psi

Multiple Choice

If 1 atm equals 101.3 kPa, what does 2 atm equal in kPa?

• 202.6 kPa

• 152.0 kPa

• 303.9 kPa

• 101.3 kPa

Multiple Choice

Convert 1 atm to psi.

• 14.7 psi

• 101.3 psi

• 760 psi

• 100 psi

Multiple Choice

How many torr are in 2 atm?

• 1520 torr

• 760 torr

• 1013 torr

• 1470 torr

Multiple Choice

What type of interaction occurs between polar molecules?

• Dipole-dipole

• Dispersion

• Hydrogen bonding

• Metallic bonding

Multiple Choice

What is the chemical formula for diatomic oxygen?

• O

• O₂

• O₃

• O₄

Multiple Choice

What does the symbol δ- represent in the diagram?

• Positive charge

• Negative charge

• Neutral charge

• Double charge

Multiple Choice

What is the main cause of the unsymmetrical distribution of electrons?

• Movement of protons

• Movement of electrons

• Movement of neutrons

• Movement of atoms

Multiple Choice

What does the prefix "Intra" mean?

• Outside

• Between

• Within

• Around

Multiple Choice

Which type of bond is formed only between metals?

• Covalent bonds

• Ionic bonds

• Metallic bonds

• Hydrogen bonds

Multiple Choice

What type of bond is formed between a metal and a non-metal?

• Covalent bonds

• Ionic bonds

• Metallic bonds

• Van der Waals forces

Multiple Choice

Which type of bond is formed only between non-metals?

• Metallic bonds

• Ionic bonds

• Covalent bonds

• Hydrogen bonds

Multiple Choice

List the bond types from weakest to strongest as mentioned in the document.

• Ionic, Covalent, Metallic

• Covalent, Metallic, Ionic

• Metallic, Covalent, Ionic

• Covalent, Ionic, Metallic

Multiple Choice

Which of the following is the weakest type of intermolecular force?

• Hydrogen Bonds

• Dipole-Dipole

• Dispersion Forces

• Ionic Bonds

Multiple Choice

What is the strongest type of intermolecular force listed in the image?

• Dispersion Forces

• Dipole-Dipole

• Hydrogen Bonds

• Covalent Bonds

Multiple Choice

In what order are the intermolecular forces listed from weakest to strongest?

• Dipole-Dipole, Dispersion Forces, Hydrogen Bonds

• Dispersion Forces, Dipole-Dipole, Hydrogen Bonds

• Hydrogen Bonds, Dipole-Dipole, Dispersion Forces

• Dispersion Forces, Hydrogen Bonds, Dipole-Dipole

Multiple Choice

Which intermolecular force is stronger than Dispersion Forces but weaker than Hydrogen Bonds?

• Ionic Bonds

• Dipole-Dipole

• Covalent Bonds

• Metallic Bonds

Multiple Choice

What type of intermolecular force is present in water (H₂O)?

• Dispersion Forces

• Dipole-Dipole

• Hydrogen Bond

• Ionic Bond

Multiple Choice

Which intermolecular force is the weakest among the given substances?

• Hydrogen Bond

• Dipole-Dipole

• Dispersion Forces

• Ionic Bond

Multiple Choice

What is the relationship between intermolecular force strength and boiling point?

• No relationship

• Weaker force, higher boiling point

• Stronger force, lower boiling point

• Stronger force, higher boiling point

Multiple Choice

What is the term used to describe the ability of both gases and liquids to flow and diffuse?

• Viscosity

• Density

• Fluidity

• Solubility

Multiple Choice

What does viscosity refer to in liquids?

• The color of a liquid

• The resistance of a liquid to flow

• The temperature of a liquid

• The volume of a liquid

Multiple Choice

High viscosity in liquids is caused by which of the following?

• Smaller attractive forces

• Larger attractive forces

• Higher temperature

• Smaller particle size

Multiple Choice

Which factor contributes to high viscosity by affecting particle size?

• Small particle size

• Large particle size

• High temperature

• Low density

Multiple Choice

What effect does low temperature have on the viscosity of a liquid?

• It decreases viscosity

• It increases viscosity

• It has no effect

• It changes the color

Multiple Choice

What does cohesion cause in surface molecules?

• They get pulled downward (Meniscus)

• They repel each other

• They move sideways

• They evaporate

Multiple Choice

What effect does adhesion have on particles in contact with a container?

• They dissolve

• They attract to the container

• They repel from the container

• They float

Multiple Choice

Which term describes the attraction of surface molecules to each other?

• Adhesion

• Cohesion

• Diffusion

• Evaporation

Multiple Choice

Which term describes the attraction of particles to a container?

• Cohesion

• Adhesion

• Fusion

• Condensation

Multiple Choice

What makes solids solid?

• Slow moving particles

• Intermolecular forces

• High temperature

• Low pressure

Multiple Choice

What is the exception to most solids being more dense than their liquid form?

• Mercury

• Water

• Iron

• Gold

Multiple Choice

Why does ice float in water?

• Ice is less dense than water

• Ice is more dense than water

• Ice is the same density as water

• Ice is heavier than water

Multiple Choice

What is the term used to describe the mass per unit volume of a substance?

• Density

• Volume

• Mass

• Weight

Multiple Choice

What is a unit cell?

• The largest group of atoms in a crystal

• A single atom in a crystal

• The smallest group of atoms that has the overall symmetry of a crystal

• A molecule in a liquid

Multiple Choice

Which of the following best describes the arrangement in crystalline solids?

• Random and chaotic

• Orderly and geometric

• Fluid and dynamic

• Irregular and asymmetrical

Multiple Choice

Which phase change involves the absorption of heat from the surroundings?

• Freezing

• Melting

• Condensation

• Deposition

Multiple Choice

What is the symbol for the phase change from solid to liquid?

• L→S

• S→L

• G→L

• L→G

Multiple Choice

What happens to the temperature of an object as it absorbs heat during melting?

• It decreases

• It remains constant

• It increases

• It fluctuates

Multiple Choice

What does IMF stand for in the context of phase changes?

• Intermolecular Forces

• International Monetary Fund

• Internal Molecular Friction

• Instant Molecular Fusion

Multiple Choice

What is the phase change from liquid to gas called?

• Condensation

• Freezing

• Vaporization

• Sublimation

Multiple Choice

Which pressure is described as the pressure exerted by the weight of the atmosphere?

• Vapor pressure

• Atmospheric pressure

• Internal pressure

• Surface pressure