Chem Unit 1 Knowt

What is matter?

Anything that has mass and takes up space

Extensive Property

Depends on the amount of matter present

Intensive Property

Depends on the identity, not amount

Examples of Extensive prop

Volume, Mass

Examples of Intensive prop

Boiling point, Density, Conductivity

Phy Prop

Observed WO changing the identity of the substance

Chem Property

Ability of a substance to undergo identity change

Examples of Physical Properties

Melting point, Density, Magnetic

Examples of Chemical Properties

Flammable, Tarnishes/Rusts

Phase Change

A physical change of state of matter

Physical Change

Changes the form of a substance wo identity

Chemical Change

Changes the identity of a substance; diff prop

Sign of Chem Change

Color/odor, gas, solid, change in light/heat

Ex. Physical Changes

DO, Melting, Grinding spices

Ex. of Chemical Changes

Rusting iron, Burning a log

Law of Conservation

Matter cannot be created or destroyed

Prop of Metals

Conductors, shiny, ductile, malleable

Prop of Nonmetals

Poor conductors, N ductile N malleable, dull

Properties of Metalloids

Properties of both metals and nonmetal