Chemistry in EverythingFind the chemistry!

What does matter look like?

Properties of Matter2 types of properties that describe matter:

ExtensiveIntensive

Let’s look at the root of each word.

Extensive Property:Property that depends on the amount of

matter in a sample

VolumeMass

Intensive Property:Property that depends on the type of matter

in a sample, NOT the amount

TemperatureDensity

Identifying SubstancesSubstance – matter that has the same

uniform and definite composition

Are both of these composed of the same substance?

Substances have 2 types of properties…

PhysicalA quality or

condition that can be observed or measured without changing the substances composition

ChemicalThe ability of a

substance to go through a specific chemical change

Can only be observed during a chemical change

Help Chemists identify

substances

And go through 2 types of changes….Physical

Some properties of a material will change, but the composition of the material does NOT Reversible &

Irreversible

ChemicalA change that

produces matter with a different composition than the original matter Irreversible Chemical reaction

Signs of a Chemical ChangeTransfer of energyChange in colorProduction of gasFormation of a

precipitateSolid that forms

from 2 liquids

What is a mixture?•A physical blend of

two or more components/substan

ces.

Is air a mixture?

Two Types of MixturesHomogeneous Heterogeneous

A mixture in which the composition of matter is uniform throughout.Solution1 phase

A mixture in which the composition is NOT uniform throughout.2 or more phases

The Kool-Aid manIs he a homogeneous or heterogeneous mixture?

How many phases does he have?

Separating MixturesFiltration Distillation

The separation of a solid and a liquid in a heterogeneous solution.

Separating the components of a homogeneous liquid solution.Tap water

http://oz.plymouth.edu/~wwf/distillation_files/image001.jpg

What are substances and mixtures composed of?

ElementsThe simplest form of

matter that has a unique set of properties.

CompoundsA substance that

contains two or more elements chemically combined in a fixed proportion.

Can elements be broken down into smaller substances?

What about compounds?

What happens to the properties of elements when they are combined?

http://www.can-do.com/uci/lessons98/I-periodic-color.gif

Substances vs. Mixtures

http://image.wistatutor.com/content/matter-around-pure/classification-of-matter.jpeg

Law of Conservation of MassIn any physical change or chemical reaction ,

mass is conserved.Mass is neither created nor destroyed.

When an ice cube melts does the liquid have the same mass as the original ice cube?