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Physical Science 10th > Chapter 2 Test Study Guide > Flashcards

Chapter 2 Test Study Guide Flashcards

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1
Q

If a material contains three elements joined in a fixed proportion, it is a what?

A

Compound

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2
Q

A substance has a melting point of 0 celsius and a boiling point of 100 celsius. The substance is most likely what?

A

Water

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3
Q

Which of the following is a heterogeneous mixture?

A

A jar of mixed nuts

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4
Q

Which of the following has the highest viscosity?

A

Corn Syrup

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5
Q

Which of the following is a mixture?

A

Sand

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6
Q

A mixture that appears to contain only one substance is a what?

A

A homogeneous Mixture

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7
Q

What physical properties of nylon and leather make them good materials to use for shoe laces?

A

Durability and Flexibility

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8
Q

A substance that is made up of only one kind of atom is a _____

A

Element

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9
Q

Give examples of things that are malleable

A

Aluminium .. Gold.. Silver

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10
Q

A material that is malleable and conducts electricity is most likely what type of material?

A

A metal

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11
Q

What method can be used to separate parts of a liquid mixture when the entire mixture can pass through a filter?

A

Distillation

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12
Q

Flammability is a materials ability to burn in the presence of what?

A

Oxygen

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13
Q

What is the symbol for gold?

A

AU

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14
Q

A mixture can be classified as a solution, suspension, or colloid based on what?

A

The size of the largest particles

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15
Q

What is the symbol for aluminum

A

AL

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16
Q

What are the clues that a chemical change has occurred?

A

Production of gas……Formation of precipitate…distinct change in color.

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17
Q

The following are pure substances?

A

Compounds

18
Q

Give examples of a pure substance

A

Water; Oxygen

19
Q

If an unknown substance cannot be broken down into simpler substances, it is a ____ and is made only of____ kind of Atom

A

Element; one

20
Q

Which of the following is a clue of chemical change?

A

A gas forms when vinegar and baking soda are mixed

21
Q

You are about to open a container of soy milk but notice that there is our instructions to shake well before serving the soy milk is most likely a ______.

A

Suspension

22
Q

Why is water a compound?

A
  1. Can be broken down into simpler substances

2. always has to hydrogen Atoms for each one oxygen aton

23
Q

Filtration can be used to separate mixtures based on which characteristics?

A

The size of their particles

24
Q

When a physical change in a sample occurs, what can change in their sample?

A

shape.. Mass.. Volume

25
Q

What type of material is used for making molds because it has a low melting point?

A

Wax

26
Q

Rust forms because iron and oxygen are highly ______ elements.

A

Reactive

27
Q

If I spoon gets hot quickly when it is used to stir a pot of soup, is probably made of _____.

A

Metal

28
Q

Material used for electrical wiring would need to have good____.

A

Conductivity

29
Q

A cake rises as it bakes because a chemical change causes _______ to be produced.

A

Carbon Dioxide

30
Q

______ is a process that could be used to separate dissolved particles from the liquid in a solution

A

Distillation

31
Q

Matter that always has exactly the same composition is classified as a ______.

A

Pure Substance

32
Q

A solid that forms and separates from a liquid mixture is a____.

A

Precipitate

33
Q

A ______ change occurs when a material changes shape or size but composition of the material does not change

A

Physical

34
Q

The substance in a ______ mixture are evenly distributed throughout the mixture

A

Homogeneous

35
Q

The symbols for elements either have____ or____ letters

A

One; two

36
Q

Is mixture C Homogeneous or heterogeneous?

A

Heterogeneous because it can be filtrated and it can be scattered by light

37
Q

What are the characteristics of a mixture?

A

They have varying properties

38
Q

Which of the the mixtures in figure 2-2 is a colloid?

A

A; Scatters light, and cant be separated by filtration or layers

39
Q

Which of the mixtures is a solution?

A

Doesn’t scatter by light, doesn’t separate into layers, or cant be filtrated.

40
Q

Rank the mixtures

A

B.A.C

Physical Science 10th (6 decks)

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