TEMPERATURE…Not the same as heat!!!

Heat Temperature

Form of energy Quantity of energy within

a system Heat flows from higher

temp to lower temp

Measure of intensity of heat

SI unit for temp is Kelvin No degree symbol for

Kelvin K K , °C, °F

Mixture Retain individual properties May be physically separated

Filtration solids from suspension Magnet magnetic Centrifuge suspended from solution Sift large from small Distillation solvent from solution Fractional distillation separate alcohol Chromatography colors Electrophoresis molecules based on

size Evaporation solute from solution

Element

Can not be broken down Found on the periodic table Simplest form Building block of all substances

Compound

Combination of two or more elements Can not be separated by physical

means Do not retain properties of their

individual elements

Molecule

Smallest uncharged individual unit of a compound

Formed by two or more atoms joined together

Water All compounds are molecules but not all

molecules are compounds

Mixture Homogeneous Uniform

Heterogeneous Two or more phases

PropertiesPhysical Chemical Color Taste Odor Physical existence State of matter Mp Density Bp

Ability of substance to form a new substance

ChangesPhysical Chemical Changes in physical

properties Change in state of matter No new substance is

formed

New substance is formed Different set of properties

Intensive Properties Extensive Properties

Do not depend on the amount of matter

Color Odor Luster Malleability Ductility Conductivity Hardness Melting/Freezing Point Boiling Point Density

Depend on the amount of matter

Mass Weight Volume Length