Chapter 1

Question 1

Smallest unit without subatomic level

Answer 1

Atom

Question 2

More than one atom

Answer 2

Molecule

Question 3

4 types of PROPERTIES

Answer 3

1) Physical 2) Chemical 3) Intensive 4) Extensive

Question 4

Physical Properties

Answer 4

measured without changing substance’s identity and composition

Question 5

Examples of Physical Properties

Answer 5

mass, texture, state, colour, density, boiling point..

Question 6

Chemical Properties

Answer 6

Observed when substance is changed into another (reacts)

Question 7

Examples of Chemical Properties

Answer 7

flammable, reactivity with acid, corrosiveness..

Question 8

Intensive Properties

Answer 8

DO NOT depend on amount of sample examined

Question 9

Examples of Intensive Properties

Answer 9

temperature, melting point…

Question 10

Extensive Properties

Answer 10

DEPEND on amount of sample present

Question 11

Examples of Extensive Properties

Answer 11

mass, volume…

Question 12

2 types of CHANGE

Answer 12

1) Physical Change 2) Chemical Change

Question 13

Examples of Physical Change

Answer 13

change in state volume quantity temperature

Question 14

Examples of Chemical Change

Answer 14

forms new suabstance release/absorb heat combustion oxidation decomposition

Question 15

Physical Changea Changes ___, not ____.

Answer 15

changes appearance, not composition

Question 16

Density = ?

Answer 16

mass/volume

Question 17

0 Kelvin = ? Celsius

Answer 17

273.15 Celsius

Question 18

Celsius -> Fahrenheit EQUATION

Answer 18

C = 5/9(F-32)

Question 19

Fahrenheit -> Celsius EQUATION

Answer 19

F = 9/5(C) + 32

Question 20

Deci = 10^?

Answer 20

-1

Question 21

Kilo = 10^?

Answer 21

3

Question 22

Mega = 10^?

Answer 22

6

Question 23

Peta = 10^?

Answer 23

15

Question 24

Tera = 10^?

Answer 24

12

Question 25

Giga = 10^?

Answer 25

9

Question 26

Centi = 10^?

Answer 26

-2

Question 27

Milli = 10^?

Answer 27

-3

Question 28

Micro = 10^?

Answer 28

-6

Question 29

Nano = 10^?

Answer 29

-9

Question 30

Pico = 10^?

Answer 30

-12

Question 31

Femto = 10^?

Answer 31

-15

Question 32

Atto = 10^?

Answer 32

-18

Question 33

Zepto = 10^?

Answer 33

-21

Question 34

In order to be truly ___ you must also be \_\_\_\_

Answer 34

ACCURATE you must also be PRECISE

Question 35

Measure of how closely inidividual measurements agree with one another

Answer 35

Precision

Question 36

How close individual measurements agree with the correct/"true" value

Answer 36

Accuracy

Question 37

SIG DIGS: +/- result has same # of ____ as measurement with \_\_\_\_.

Answer 37

DECIMAL PLACES as measurement with FEWEST DECIMAL PLACES

Question 38

SIG DIGS: mult. & div. result contains same # of ____ as measurement with \_\_\_\_.

Answer 38

SIG DIGS as measurement with FEWEST SIG DIGS

Question 46

Atomic Number

Answer 46

of protons

Question 50

We define matter as..

Answer 50

Anything that has mass and takes up space

Question 51

the term SIGNIFICANT FIGURES refers to..

Answer 51

digits that were measured

Question 52

1 Cal = ? J

Answer 52

4.184 J