Transcript Unit 1 Notes 3 Types of Matter Extensive vs. Intensive Properties • Mass is an extensive property—a property that depends on the amount.

Unit 1 Notes 3
Types of Matter
Extensive vs. Intensive Properties
• Mass is an extensive property—a property
that depends on the amount of stuff you
have.
• Other properties that are extensive would
include size, shape, etc.
• Intensive properties are ones that only
depend on what kind of stuff you have,
like color, etc.
Intensive or Extensive?
•
•
•
•
•
•
•
Mass
Color
Density
Shape
Melting point
Texture
Flammable
PHYSICAL PROPERTIES
• A quality or condition of a substance that
can be observed or measured without
changing the substance’s composition
• What are some examples?
color
solubility
odor
Density and
hardness
Melting
point
Boiling
point
STATES OF MATTER
• Matter’s state is a physical property
solid
gas
liquid
Definite shape,
definite volume
No definite shape,
definite volume
No definite shape,
no definite volume
SIDENOTE:
• A gaseous substance that is found as a
solid or liquid at room temperature is
called vapor.
PHYSICAL CHANGES
• A physical change is one that
does not involve altering the
chemical composition.
CHEMICAL REACTIONS
• The ability of a substance to
react and form new
substances is called a
chemical property.
• In a chemical reaction, one
or more substances change
into new substances.
• A reaction starts with the
reactants, and the
substances formed are
called products.
4 CLUES TO CHEMICAL REACTION
Color
change
Heat/light
produced/
absorbed
Solid
from a
liquid
Gas
formed
CHEMICAL OR PHYSICAL CHANGE?
•
•
•
•
•
•
•
•
Baking cookies
Boiling water
Dissolving salt
Burning firewood
Milk spoiling
Metal rusting
Tearing paper
Melting ice
LAW OF CONSERVATION OF MASS
• During any chemical reaction, the
quantity of matter is unchanged. The
mass of the products always equals
the mass of the reactants.