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Chemistry > Chapter 2 > Flashcards

Chapter 2 Flashcards

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1
Q

The ____ of an object is a measure of the space occupied by the object.

A

Volume

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2
Q

An _______ _________ is a property that depends on the amount of matter in a sample.

A

Extensive property

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3
Q

An _____ _______ is a property that depends of the type of matter in a sample, not the amount of matter.

A

Intensive property

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4
Q

What is matter that has a uniform and definitive composition?

A

Substance

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5
Q

Why does every sample of a substance have identical intensive properties?

A

Every sample has the same composition

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6
Q

A _____ _______ is a quality or condition of a substance that can be observed or measures without changing the substance’s composition.

A

Physical property

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7
Q

What are the three states of matter

A

Solid, liquid, and gas

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8
Q

A _____ is a form of matter that has a definite shape and volume

A

Solid

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9
Q

A ____ is a form of matter that has an indefinite shape, flows, yet has a fixed volume.

A

Liquid

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10
Q

A ____ is a form of matter that take both the shape and volume of its container

A

Gas

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11
Q

Are solids easily compressed?

A

No

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12
Q

Are liquids easily compressed?

A

No

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13
Q

Are gases easily compressed?

A

Yes

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14
Q

What describes the gaseous state of a substance that is generally a liquid or solid at room temperature?

A

Vapor

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15
Q

During a ______ ______, some properties of a material change, but the composition of the material does not change.

A

Physical change

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16
Q

What kind of changes can be classified as reversible or irreversible?

A

Physical

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17
Q

The ____ of an object is a measure of the amount of matter the object contains.

A

Mass

18
Q

All physical changes that involve a change from one state to another are what?

A

Reversible

19
Q

What is a physical blend of two or more components?

A

Mixture

20
Q

What is a mixture in which the composition is not uniform throughout?

A

Heterogeneous mixture

21
Q

What is a mixture in which the composition is uniform throughout?

A

Homogeneous mixture

22
Q

What is another name for a homogeneous mixture?

A

Solution

23
Q

What is used to describe any part of a sample with uniform composition and properties?

A

Phase

24
Q

Difference in ____ properties can be used to separate mixtures.

A

Physical

25
Q

What is the process that separates a solid from a liquid in a heterogeneous mixture?

A

Filtration

26
Q

What is the process in which a liquid is boiled to produce a vapor that is then condensed into a liquid?

A

Distillation

27
Q

What is the simplest form of matter that has a unique set of properties?

A

Element

28
Q

What is a substance that contains two or more elements chemically combined in a fixed proportion?

A

Compound

29
Q

What is a change that produces matter with a different composition than the original matter?

A

Chemical change

30
Q

If the composition of a material is fixed, the material is a what?

A

Substance

31
Q

If the composition of a material may very, the material is a what?

A

Mixture

32
Q

What is the ability of a substance to undergo a specific chemical change?

A

Chemical property

33
Q

What is when one or more substances change into one or more new substances?

A

Chemical reaction

34
Q

What is a substance present at the start of the reaction?

A

Reactant

35
Q

What is a substance produced in the reaction?

A

Product

36
Q

What are the possible clues that a chemical reaction has taken place?

A

Transfer of energy, change in color, production of a gas, the formation of a precipitate

37
Q

What is a solid that forms and settles out of a liquid mixture?

A

Precipitate

38
Q

The mass of the products is always what to the mass of the reactants?

A

Equal

39
Q

What does the law of conservation of mass state?

A

In any physical change or chemical reaction, mass is conserved. Mass is neither created nor destroyed.

40
Q

How often does a chemical change involve a transfer of energy?

A

Always

Chemistry (10 decks)

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