Chapters 1-3 Flashcards Preview

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Flashcards in Chapters 1-3 Deck (39):
1

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

Electrons

2

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

Contains more matter

3

An example of an extensive property of matter is

Mass

4

What is a physical property of water?

It melts below room temperature

5

How do vapors and gases differ?

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

6

What is an example of a mixture?

Pure air

7

What is an example of a heterogeneous mixture?

Soil

8

Distillation

Separating a solid from a liquid by evaporating the liquid

9

What is an example of a homogenous mixture?

Stainless steel

10

Compounds

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

11

What are chemical properties?

Must undergo a change to determine

12

Physical property

Something that can be tested or measured without a chemical change

13

Examples of physical properties

Color
Melting/Boiling points
Hardness

14

Physical change

Changed physical appearance and not the molecule

15

Chemical change

Changed chemical structure

16

Substance

Something that is uniform throughout

17

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

Chemical change

18

What happens to mass during a chemical reaction?

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

19

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

Accuracy

20

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

Accuracy

21

What is the chief advantage of the metric system?

It is in multiples of 10

22

Which temperature scale has no negative temperatures?

Kelvin

23

Centimeter

100cm/1m

24

Millimeters

1000mL/1L

25

Kilometers

1000g/1kg

26

TGM KHDMDCM MHPFA

Prefixes for metric system

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

27

Meters to Liters

1cm^3/1mL

28

Meters to inches

2.54cm/1in

29

Density

M/V

30

Mass

Amount of matter something has

31

Volume

Amount of space something takes up

32

Substance

Something that is uniform throughout

33

Mixture

More than 1 molecule present

34

Solution

Homogenous liquid

35

Unit of mass

Grams

36

Unit of length

Meters

37

Unit of temperature

Kelvin

38

Unit of time

Seconds

39

Unit of weight

Newtons