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