Review of Matter

CompoundsElements Heterogeneous Homogeneous

Mixtures

Matter

Pure Substances

Energy

States of Matter• What is the

physical state of each item at room temperature?

• gold • gasoline • helium• paraffin wax • rubbing alcohol • mercury

Mixtures• Classify each of the

following as homogeneous or heterogeneous mixtures.

– blood – chocolate chip ice cream – brass – motor oil – black coffee

• Heterogeneous• Heterogeneous• Homogeneous• Homogeneous• Homogeneous

Mixtures

• How many phases does every solution have?

• 1 • 2• 3• 0

MixturesClassify each of the

following as an element or a mixture

• silver • pine tree• orange juice • oxygen • iced tea • air

• Element• Mixture• Mixture• Element• Mixture• Mixture

ElementsName the colored

element in each of the following compounds

• NH4Cl• KMnO4

• C3H7OH • CaI2

• (nitrogen)• (potassium)• (carbon)• (iodine)

ElementsHow many total

elements make up each of the following compounds?

• NH4Cl• 3

– 6 • 4

• KMnO4

• 7• 3• 6

• C3H7OH• 11• 12• 4

• CaI2

• 3 • 4• 2

Physical or Chemical Change

Classify each of the following as a physical or chemical change.

• bending a piece of wire • burning coal• cooking a steak• cutting grass

• Physical• Chemical• Chemical• Physical

Physical or Chemical ChangeClassify each of the following

as being either a physical or chemical change

• color change• boiling • cutting • energy absorbed or

released • gas produced • freezing • odor change

• Chemical• Physical• Physical• Chemical• Chemical• Physical• Chemical

Mixture or Compound?• Identify each of the

following as a mixture or a compound.

• soda • candle wax • fog • ink • egg • ice• gasoline • blood

• Mixture• Mixture• Mixture• Mixture• Mixture• Compound• Mixture• Mixture

Heterogeneous or Homogeneous?

Identify each of the following as being a heterogeneous or homogeneous mixture.

• soda • candle wax • fog • ink • egg • gasoline • blood

• Homogeneous• Homogeneous• Heterogeneous• Homogeneous• Heterogeneous• Homogeneous• Homogeneous

Chemical or Physical?• Classify the following

properties of the element silicon as chemical or physical properties.

• blue-grey color

• brittle

• insoluble in water

• melts at 1410 °C • reacts vigorously w/ fluorine

• Physical• Physical• Physical• Physical• Chemical

Look at the following models. (1) Identify each as a substance or a mixture. (2) Then describe its composition as elements only, compounds only, mix of elements, and mix of compounds.

• (a) substance /elements only• (b) mixture /mix of compounds• (c) substance /elements only

(diatomic)• (d) substance /elements only• (e) mixture / mix of elements• (f) mixture /mix of elements• (g) substance /compounds only• (h) mixture /mix of elements