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Chemistry
study of the properties of materials and the changes that materials undergo
seeing how chemical principles operate in all aspects of our lives
the central science
Matter
What is Matter?What is Matter?
it is the physical material of the universe
it is anything that has mass and occupies space
What are Matter’s Characteristics?
characteristics that allows us to recognize it and distinguish it from other substances
have two categoriesPhysical properties
characteristics that is measurable
can be observed by the senses
Chemical propertiesdescribe the way a substance may change or react to form other substances
Properties of Matter
Other Properties
Intensive propertiesdoesn’t depend on the amount of substanceincludes odor, composition, boiling point, melting point
Extensive propertiesdepend on the quantity/amount of substanceincludes mass, volume
Matter
Matter
Terminology
Flammability – ability of a substance to burn in the presence of oxygen
Carbonization – process in making substances into charcoal
How is Matter classified?
physical state (states of matter)
composition (pure substance or mixture)
States of MatterState Example Characteristics
solid Gold
Books
definite shape
definite volume
liquid Water
Juice drinks
no specific shape
distinct volume
gas Air no fixed shape
no fixed volume
plasma Interior of the sun Exists only at high temperatures
Sample of States of Matter
Samples of states
The Three States of Matter
Classification of Matter
Orange juice
Vegetable salad
suspension
Heterogeneous mixture
Ten-peso coins
Charcoal /
activated charcoal
metal
nonmetal