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Chemistry & Spanish > States and State Changes Review (Module 11) > Flashcards

States and State Changes Review (Module 11) Flashcards

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1
Q

Nonpolar covalent molecules only have this type of intermolecular force among them.

A

London Dispersion Forces

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2
Q

Which is NOT part of the Kinetic Molecular Theory (KMT)?

A

There are significant forces between gas particles

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3
Q

Temperature is …

A

a measure of the average kinetic energy of particles.

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4
Q

The natural movement of a fluid from an area of high concentration to an area of low concentration.

A

Diffusion

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5
Q

The escape of a gas through a tiny opening.

A

Effusion

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6
Q

In what phase of matter do the particles move independently with almost no attractive forces?

A

Gas

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7
Q

In general, the attraction liquid particles have for each other is called……

A

Cohesion

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8
Q

What is the normal boiling point of water?

A

100° C

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9
Q

Which of the following is standard pressure?
1 atm
101.3 kPa
760 mmHg
all of these

A

All of these

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10
Q

What type of a process is sublimation?

A

Endothermic

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11
Q

In which of the following locations would water boil above 100° C?
Mt. Everest (Tallest peak)
Denver, CO (The Mile High City)
Modesto, CA (Elevation 89 ft.)
Death Valley, CA (Lowest elevation in North America)

A

Death Valley, CA (Lowest elevation in North America)

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12
Q

Vapor pressure _____________ when temperature decreases.

A

decreases

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13
Q

What forces are involved in capillary action?

A

Both adhesion and cohesion

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14
Q

Which of the following would increase vapor pressure in a closed container?

A

heating the container

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15
Q

Which of the following has the greatest attraction between particles?

A

A substance that boils at 120°C

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16
Q

The temperature at which the vapor pressure and external pressure are equal is called?

A

boiling point

17
Q

These intermolecular forces can be observed in water.
dipole-dipole interactions
hydrogen bonding
London dispersion forces
all of these

A

All of these

18
Q

In which state of matter are the particles in fixed positions?

A

Solid

19
Q

What type of process is freezing?

A

Exothermic

20
Q

A solid with a low melting point is likely….
polar covalent
nonpolar covalent
ionic
metallic

A

nonpolar covalent

21
Q

A carbonated beverage over ice contains _______ phase(s).

A

three

22
Q

What type of attraction is the strongest?

A

ionic

23
Q

Which of the following statements is false?
-Water molecules are affected by hydrogen bonding
-Water molecules always contain 1 oxygen and 2 hydrogens
-Water’s normal melting point is 0° C.
-Water always boils at 100°C

A

Water always boils at 100°C

24
Q

Attraction between liquid particles and a solid surface are called

A

Adhesion

25
Q

A substance that lowers a liquid’s surface tension.

A

Surfactant

26
Q

Dalton’s Law states that …

A

the PTotal in a container is equal to the sum of its partial pressures.

27
Q

A device used to measure air pressure.

A

barometer

28
Q

Force per unit area is …

A

Pressure

29
Q

Temporary dipoles are associated with which type of force?
London Dispersion
Hydrogen bonds
dipole-dipole
Ionic Bonds

A

London Dispersion

30
Q

The property of the surface of a liquid that allows it to resist an external force, due to the liquid’s cohesive nature.

A

surface tension

31
Q

Different forms of a particular substance in the same physical state are called _____ .

A

allotropes

32
Q

Diamond is an example of a(n) ______ .

A

covalent network solid

33
Q

Liquid to Gas

A

Evaporation

34
Q

Gas to liquid

A

Condensation

35
Q

Gas to soild

A

Deposition

36
Q

Solid to gas

A

Sublimation

37
Q

Liquid to solid

A

Freezing

38
Q

Solid to liquid

A

Melting

39
Q

The state that a substance is in above and beyond the critical point.

A

supercritical fluid

Chemistry & Spanish (5 decks)

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