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Chemistry > Chapters 1-3 > Flashcards

Chapters 1-3 Flashcards

1
Q

In a chemical reaction, the type of products obtained is largely determined by which part of the reacting chemicals?

A

Electrons

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2
Q

A golf ball had more mass than a tennis ball because it

A

Contains more matter

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3
Q

An example of an extensive property of matter is

A

Mass

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4
Q

What is a physical property of water?

A

It melts below room temperature

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5
Q

How do vapors and gases differ?

A

Generally, a gas is in the gaseous at room temperature and a vapor is in either the solid state or liquid state at room temperature

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6
Q

What is an example of a mixture?

A

Pure air

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7
Q

What is an example of a heterogeneous mixture?

A

Soil

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8
Q

Distillation

A

Separating a solid from a liquid by evaporating the liquid

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9
Q

What is an example of a homogenous mixture?

A

Stainless steel

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10
Q

Compounds

A

They are substances
More than 1 type of atom bonded together
Can be separated only by a chemical change

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11
Q

What are chemical properties?

A

Must undergo a change to determine

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12
Q

Physical property

A

Something that can be tested or measured without a chemical change

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13
Q

Examples of physical properties

A

Color
Melting/Boiling points
Hardness

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14
Q

Physical change

A

Changed physical appearance and not the molecule

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15
Q

Chemical change

A

Changed chemical structure

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16
Q

Substance

A

Something that is uniform throughout

17
Q

When paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place?

A

Chemical change

18
Q

What happens to mass during a chemical reaction?

A

Total mass of the reactants equals the total mass of the products

19
Q

The closeness of a measurement to its true value is a measure of its

A

Accuracy

20
Q

When a test instrument is calibrated, does its accuracy, precision, or reliability improve?

A

Accuracy

21
Q

What is the chief advantage of the metric system?

A

It is in multiples of 10

22
Q

Which temperature scale has no negative temperatures?

A

Kelvin

23
Q

Centimeter

A

100cm/1m

24
Q

Millimeters

A

1000mL/1L

25
Q

Kilometers

A

1000g/1kg

26
Q

TGM KHDMDCM MHPFA

Prefixes for metric system

A

-12 -9 -6
-3 -2 -1 0 1 2 3
6 9 12 15 18

27
Q

Meters to Liters

A

1cm^3/1mL

28
Q

Meters to inches

A

2.54cm/1in

29
Q

Density

A

M/V

30
Q

Mass

A

Amount of matter something has

31
Q

Volume

A

Amount of space something takes up

32
Q

Substance

A

Something that is uniform throughout

33
Q

Mixture

A

More than 1 molecule present

34
Q

Solution

A

Homogenous liquid

35
Q

Unit of mass

A

Grams

36
Q

Unit of length

A

Meters

37
Q

Unit of temperature

A

Kelvin

38
Q

Unit of time

A

Seconds

39
Q

Unit of weight

A

Newtons

Chemistry (6 decks)

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