Classifying Matter

• Matter – anything that has mass

• Mass - quantity of matter contained in an object

• Weight – the force of attraction between matter and earth

Person… on Moon… on Earth…

Mass same same

Weight 1/6 x W lbs. W lbs.

Gravity 1/6 G G

MATTER

– anything that has volume

• Volume – amount of space occupied by an object

ImpureSubstances

Matter

Elements

Compounds

Mixtures

PURE SUBSTANCES

Matter

Elements

MonoatomicElement

Elements whose atoms travel alone

Na, He, Fe, U

DiatomicElement

Elements whose atoms always are paired

H2, O2, N2, Cl2, Br2, I2, F2

Compounds

Mixtures

Elements are composed of one type of atom.

Matter

Elements

Compounds

Mixtures

2 or moreDIFFERENTElementscombined chemically

NaCl H2O NaHCO3

Matter

Elements

Compounds

Mixtures

2 or moreDIFFERENTElements or Compoundscombined physically

NaCl & H2O Fe & KCl

Matter

Elements

Compounds

Mixtures

Homogeneous

Mixture that is the same throughout

Solutions Salt water Kool-Aid Alloys

Heterogeneous

Mixture that is not the same throughout

Suspension

Salad Dressing

Colloid

Milk Tyndall effect

Tyndall effect is easily seen using a laser pointer aimed at the the mist from this ultrasonic humidifier's mist

Colloid Solution

Colloid Solution

Colloid

Identify the classification of matter

Homogeneous mixture/

Solution

Compound

Heterogeneous mixture/

Suspension

On to tonight’s fun

Determine the classification of the sample.Determine the formula for each sample.

Smiley (Sm)

Heart (H)

Star (St)

Moon (M)

Lightning (L)Type:

Formula:

Monoatomic Element

Sm

Determine the classification of the sample.Determine the formula for each sample.

Smiley (Sm)

Heart (H)

Star (St)

Moon (M)

Lightning (L)Type:

Formula:

Diatomic Element

M2

Determine the classification of the sample.Determine the formula for each sample.

Smiley (Sm)

Heart (H)

Star (St)

Moon (M)

Lightning (L)Type:

Formula:

Compound

LH2

Determine the classification of the sample.Determine the formula for each sample.

Smiley (Sm)

Heart (H)

Star (St)

Moon (M)

Lightning (L)Type:

Formula:

Mixture of compounds

L2StH and SmM3H

Determine the classification of the sample.Determine the formula for each sample.

Smiley (Sm)

Heart (H)

Star (St)

Moon (M)

Lightning (L)Type:

Formula:

Mixture of monotomic element and compound

St and SmM

Determine the classification of the sample.Determine the formula for each sample.

Smiley (Sm)

Heart (H)

Star (St)

Moon (M)

Lightning (L)Type:

Formula:

Mixture of compounds

H2M and M2St

Determine the classification of the sample.Determine the formula for each sample.

Smiley (Sm)

Heart (H)

Star (St)

Moon (M)

Lightning (L)Type:

Formula:

Mixture of compound and diatomic elements

HSm2, St2 and Sm2