Physical Properties & Chemical Properties 2019

Physical Property

can be observed and measured without changing the identity of the substance

Melting Point

temperature at which a substance changes from a solid to a liquid (physical prop)

Boiling Point

temperature at which a substance changes from a liquid to a gas (physical prop)

Density

the relationship between the mass of a material and its volume

D=m/v (physical prop)

Color

by itself, this is not a significant identifier of a substance (physical prop)

Chemical Property

can be observed when substances react (combine) with another substance; as a result it becomes a new substance

Flammability

involves a substance reacting with oxygen quickly to produce light and heat (chemical prop)

Ability to Rust

involves a substance (iron) reacting slowly with oxygen (chemical prop)

Physical Properties of Matter Examples

Melting Point; Boiling Point; Density; Color, Conductivity, Ductile

Malleable

Chemical Properties of Matter Examples

Flammability; Ability to Rust; Formation of new product

Texture

how the surface of a substance feels (physical prop)

Odor

how a substance affects the olfactory (smell) receptors (physical prop)

Solubility

describes how easily a substance dissolves when mixed with another substance (physical prop)

Reactivity

describes how a substance reacts when exposed to another substance (chemical prop)

Three pieces of evidence a chemical change took place

A change in color, the formation of gas, change in temperature

mixture

A combination of two or more substances that are not chemically combined

element

If all the atoms in a substance have the same identity

chemical property

a characteristic of a substance that indicates whether it can undergo a certain chemical change

chemical change

a change of one substance to another

physical change

a change in size, shape, or state of matter

physical property

any characteristic of a material that you can observe without changing the identity of the substance that make up the material

compound

a substance in which the atoms of two or more elements are combined in a fixed proportion

pure substance

a type of matter with a fixed composition