3. Chemical Properties
ā¢ Types of Chemical
Properties:
ā¢ Combustible/flammable:
ā¢ able to burn
ā¢ Examples & Facts:
ā¢ all chemicals come with a
label that identifies their level
of flammability
4. Chemical Properties
ā¢ Types of Chemical
Properties:
ā¢ Combustible/flammable:
ā¢ able to burn
ā¢ http://youtu.be/EZ3JT2nWfMA
ā 1:30 Combustion of Mg
ā¢ Examples & Facts:
ā¢ oxygen & hydrogen are very
flammable gases
ā¢ carbon dioxide is not a very
flammable gas
6. Chemical Properties
ā¢ Types of Chemical Properties:
ā¢ Reactivity:
ā¢ how easily a substance reacts
with another substance
ā¢ http://youtu.be/sS3cIK9jlB8
ā 1:10 min Alkali metals reaction to water
ā¢ Examples & Facts:
ā¢ many chemicals react with
water or oxygen
ā¢ all chemicals come with a
label that identifies their level
of reactivity
7. Chemical Properties
ā¢ Types of Chemical
Properties:
ā¢ Reactivity:
ā¢ how easily a substance
reacts with another
substance
ā¢ Examples & Facts:
ā¢ corrosion: slow reaction
& wearing away of metals
(rusting, tarnishing)
10. Physical Properties
ā¢ Types of Physical Properties:
ā¢ color
ā¢ texture
ā¢ odor
ā¢ taste
ā¢ hardness
ā¢ magnetic
ā¢ boiling, melting, & freezing points
11. Physical Properties
ā¢ Types of Physical
Properties:
ā¢ Luster:
ā¢ shininess or dullness
ā¢ Examples & Facts:
ā¢ most metals are shiny
ā¢ diamonds have a lot of
luster
ā¢ many minerals are dull
12. Physical Properties
ā¢ Types of Physical Properties:
ā¢ Brittleness:
ā¢ how easily a substance breaks into
pieces
ā¢ Examples & Facts:
ā¢ very brittle substances
may crumble or break
with very little force
13. Physical Properties
ā¢ Types of Physical Properties:
ā¢ Brittleness:
ā¢ how easily a substance breaks into
pieces
ā¢ Examples & Facts:
ā¢ many rocks & minerals
are brittle
ā¢ chalk is brittle because
it crumbles easily
14. Physical Properties
ā¢ Types of Physical
Properties:
ā¢ Malleable:
ā¢ can be pounded into shapes
ā¢ Examples & Facts:
ā¢ aluminum is very malleable
ā¢ clay is also malleable
ā¢ substances that are malleable
are usually not very brittle
16. Physical Properties
ā¢ Types of Physical Properties:
ā¢ Ductile:
ā¢ can be pulled out into a long wire
ā¢ Examples & Facts:
ā¢ substances may be both malleable
& ductile
ā¢ copper is very malleable &
ductile
ā¢ substances that are ductile
are usually not very brittle
17. Physical Properties
ā¢ Types of Physical Properties:
ā¢ Conductive:
ā¢ can transmit heat and/or electricity
ā¢ Examples & Facts:
ā¢ a substance may conduct
heat, electricity, neither, or both
ā¢ most metals are good
conductors
18. Physical Properties
ā¢ Types of Physical Properties:
ā¢ Conductive:
ā¢ can transmit heat and/or
electricity
ā¢ Examples & Facts:
ā¢ pots & pans are made out of metals
that are good heat conductors
19. Physical Properties
ā¢ Types of Physical
Properties:
ā¢ Soluble:
ā¢ can be dissolved in a liquid
ā¢ Examples & Facts:
ā¢ substances that are āwater-
solubleā will dissolve in water
ā¢ salt & sugar are soluble in
water
ā¢ substances that donāt dissolve
are āinsolubleā
20. Overview of Physical &
Chemical properties
ā¢ http://youtu.be/oF0lN0jZYx0
ā¢ Physical and Chemical Properties
visual 2:30 min
ā¢ http://www.youtube.com/watch?
v=C4pQQQNwy30
ā¢ Chemistry - The Physical
Properties and Chemical Properties
of Matter
ā 6 min
21. Models are
representations of
objects or systems.
Models can be used for:
ā¢ Understanding something
ā¢ Predicting
ā¢ Picturing things in your mind
ā¢ Explain scientific theories
25. Limitation of Models
ā¢ They donāt act exactly like the
things they model or they may
not look like the things they
represent. Scale might be
incorrect.
ā¢ What is wrong with this model?
26. Extra information on
Chemical & Physical
ā¢ http://education-portal.com/academy/lesson/matter-physical-and-chemical-
properties.html#transcript Just watch from 1:50 to 4:20 on video
ā¢ http://www.youtube.com/watch?v=ritaljhhk7s Pharaoh Snake Reaction (Mercury(II)
thiocyanate decomposition) 3:11 min
ā¢ http://www.youtube.com/watch?v=PQ6IsCbNZAQ Sulfuric Acid vs Sponge - Chemical
Reaction 1 min