Organization of Matter Unit B Matter and Chemical Change
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Organization of Matter
Unit B Matter and Chemical Change
Changes of states Properties of matter Classification of matter
Overview
Melting: A solid changing to a liquid Evaporation: A liquid changing to a gas Freezing: A liquid changing to solid Condensation: A gas changing to a liquid Deposition: a gas changing directly to a
solid. Sublimation: a solid changing directly to a
gas.
Changes in states of matter
Changes of states Properties of matter Classification of matter
What is Matter?
Matter is anything that has mass and occupies space.
What are the three states of matter?
Solid Liquid and Gas
Matter
How can we tell when substances differ from one another?
Properties: are the characteristics that can
be used to describe a substance. Two types: Physical and Chemical
Properties
Physical Properties: property that describes the physical appearance and composition of a substance.
Physical Change: The physical composition stays the same the state or appearance is the only thing that is altered.
Physical Properties
Colour LustreEx Dimond high in lustre and Emerald is low
in lustre
Melting point Boiling point Hardness (pg 99 figure 1.7 Mohs hardness
scale).
List of Physical Properties
MalleabilityEx. Gold DuctilityEx. Copper wire Crystal shape Solubility Density Conductivity
Chemical Properties – describes how a substance behaves when it interacts with another.
Reaction with acid Ability to burn Reaction with water Behavior in air Reaction to heat
Changes of states Properties of matter Classification of matter
Can be either an element or a compound.
Element: cannot be broken down to any simpler substances.
Compound: two or elements combining in a chemical reaction.
Pure Substance
Is a combination of pure substances. In a mixture both substances remain in their
pure form, although they are not always easily identified.
4 types of mixtures Mechanical Mixture Solution Suspension Colloid
Mixture
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