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1

Smallest unit without subatomic level

Atom

2

More than one atom

Molecule

3

4 types of PROPERTIES

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

4

Physical Properties

measured without changing substance's identity and composition

5

Examples of Physical Properties

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

6

Chemical Properties

Observed when substance is changed into another (reacts)

7

Examples of Chemical Properties

flammable, reactivity with acid, corrosiveness..

8

Intensive Properties

DO NOT depend on amount of sample examined

9

Examples of Intensive Properties

temperature, melting point...

10

Extensive Properties

DEPEND on amount of sample present

11

Examples of Extensive Properties

mass, volume...

12

2 types of CHANGE

1) Physical Change 2) Chemical Change

13

Examples of Physical Change

change in state volume quantity temperature

14

Examples of Chemical Change

forms new suabstance release/absorb heat combustion oxidation decomposition

15

Physical Changea Changes ___, not ____.

changes appearance, not composition

16

Density = ?

mass/volume

17

0 Kelvin = ? Celsius

273.15 Celsius

18

Celsius -> Fahrenheit EQUATION

C = 5/9(F-32)

19

Fahrenheit -> Celsius EQUATION

F = 9/5(C) + 32

20

Deci = 10^?

-1

21

Kilo = 10^?

3

22

Mega = 10^?

6

23

Peta = 10^?

15

24

Tera = 10^?

12

25

Giga = 10^?

9

26

Centi = 10^?

-2

27

Milli = 10^?

-3

28

Micro = 10^?

-6

29

Nano = 10^?

-9

30

Pico = 10^?

-12