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Chemistry > Chapter 2 Test > Flashcards

Chapter 2 Test Flashcards

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1
Q

Which of the following is a heterogeneous mixture?

A

Soil.

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2
Q

Which of the following changes to a metal is a chemical change?

A

Rusting.

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3
Q

Which of the following is true about homogeneous mixtures?

A

They are known as solutions.

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4
Q

The first letter in a properly written chemical symbol is always…

A

Capitalized.

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5
Q

Which state of matter takes both the shape and volume of its container?

A

Gas only.

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6
Q

An example of an extensive property of matter is…

A

Mass.

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7
Q

Which state of matter is characterized by having an indefinite shape, but a definite volume?

A

Liquid only.

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8
Q

Which of the following is a physical property of a substance in the liquid state?

A

Definite volume.

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8
Q

Which of the following is a physical property of a substance in the liquid state?

A

Definite volume.

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9
Q

Which of the following may have more than one phase?

A

A heterogeneous mixture.

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9
Q

Which of the following may have more than one phase?

A

A heterogeneous mixture.

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10
Q

The chemical formula of a compound indicates..

A

The relative proportions of the elements in the compound.

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10
Q

The chemical formula of a compound indicates..

A

The relative proportions of the elements in the compound.

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11
Q

Which of the following is a chemical property?

A

Ability to react with oxygen.

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11
Q

Which of the following is a chemical property?

A

Ability to react with oxygen.

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12
Q

Which of the following is a physical property?

A

Melting point.

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12
Q

Which of the following is a physical property?

A

Melting point.

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13
Q

Which of the following is a homogeneous mixture?

A

Salt water.

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13
Q

Which of the following is a homogeneous mixture?

A

Salt water.

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14
Q

Which of the following can be classified as a mixture?

A

Pure air.

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14
Q

Which of the following can be classified as a mixture?

A

Pure air.

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15
Q

Which substance has a chemical symbol that is derived from a Latin name?

A

Potassium.

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15
Q

Which substance has a chemical symbol that is derived from a Latin name?

A

Potassium.

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16
Q

Which of the following is a heterogeneous mixture?

A

Oil and vinegar.

16
Q

Which of the following is a heterogeneous mixture?

A

Oil and vinegar.

17
Q

Which of the following is true about compounds?

A

They are substances.

17
Q

Which of the following is true about compounds?

A

They are substances.

18
Q

A horizontal row of the periodic table is usually referred to as a …

A

Period.

18
Q

A horizontal row of the periodic table is usually referred to as a …

A

Period.

19
Q

A chemical change occurs when a piece of wood…

A

Decays.

19
Q

A chemical change occurs when a piece of wood…

A

Decays.

20
Q

Which of the following is a physical change?

A

Evaporation.

20
Q

Which of the following is a physical change?

A

Evaporation.

21
Q

In the chemical reaction in which sucrose is heated and decomposes to form carbon dioxide and water, which of the following is a reactant?

A

Surcose.

21
Q

In the chemical reaction in which sucrose is heated and decomposes to form carbon dioxide and water, which of the following is a reactant?

A

Surcose.

22
Q

A golf ball has more mass than a tennis ball because it…

A

Contains more matter.

22
Q

A golf ball has more mass than a tennis ball because it…

A

Contains more matter.

23
Q

What is one difference between a mixture and a compound?

A

A compound can only be separate into its components by chemical means.

23
Q

What is one difference between a mixture and a compound?

A

A compound can only be separate into its components by chemical means.

24
Q

When an iron nail is ground into powder, its mass…

A

Stays the same.

24
Q

When an iron nail is ground into powder, its mass…

A

Stays the same.

25
Q

Which of the following is a chemical property of water at 4 degress Celsius.

A

Its ability to decompose into hydrogen and oxygen.

25
Q

Which of the following is a chemical property of water at 4 degress Celsius.

A

Its ability to decompose into hydrogen and oxygen.

26
Q

Which state of matter has a definite volume and takes the shape of its comtainer?

A

Both b and c (liquid and gas only).

26
Q

Which state of matter has a definite volume and takes the shape of its comtainer?

A

Both b and c (liquid and gas only).

27
Q

Which of the following is used for chemical symbols today?

A

Letters.

27
Q

Which of the following is used for chemical symbols today?

A

Letters.

28
Q

Which state of matter is characterized by having a definite shape and definite volume?

A

Solid only.

28
Q

Which state of matter is characterized by having a definite shape and definite volume?

A

Solid only.

29
Q

Which of the following is a physical property of water?

A

It melts below room temperature.

29
Q

Which of the following is a physical property of water?

A

It melts below room temperature.

30
Q

Which state of matter expands when heated and is easy to compress?

A

Gas.

30
Q

Which state of matter expands when heated and is easy to compress?

A

Gas.

31
Q

Which of the following represents a compound?

A

H2o.

31
Q

Which of the following represents a compound?

A

H2o.

32
Q

Separating a solid from a liquid by evaporating the liquid is called…

A

Distillation.

33
Q

Which of the following processes involves a change in physical properties?

A

Boiling.

34
Q

Give an example of a two-phase mixture and describe how you would separate the substances.

A

Ice cubes in a cup filled with water.

35
Q

Which is the difference between a solution and a heterogeneous mixture? Give an example of each.

A

A heterogeneous mixture doesn’t look the same throughout. An example would be water and oil mixed together in a container. The oil doesn’t combine with the water, it just sits there.

Chemistry (12 decks)

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