chemical reactions review

Chemical Reactions Review!

Use the following questions to fill in page 22 in your booklet.

Multiple Choice

A pure substance containing only one kind of

• atom

• mixture

Multiple Choice

· An element is always uniform all the throughout. (homogenous).

 

• True

• False

Multiple Choice

· An element ______________________ be separated into simpler materials (except during nuclear reactions).

 

 

• cannot

• can

Multiple Choice

· Over 100 existing elements are listed and classified on the _________________________________________.

 

 

 

• Periodic Table

• Elements

Multiple Choice

· · A pure substance contain two or more kinds of ____________________________.

 

• Periodic Table

• Elements

Multiple Choice

· The atoms are __________________________ combined in some way.  Often times (but not always) they come together to form groups of atoms called molecules.

 

• Chemically

• Physically

Multiple Choice

· A compound is always homogenous (uniform).

 

 

• true

• false

Multiple Choice

Compounds ________________________ be separated through physical means. 

 

• cannot

• can

Multiple Choice

Separating a compound requires a ______________________________________.

 

• chemical reaction

• physical reaction

Multiple Choice

· The properties of a compound are usually __________________ than the properties of the elements it contains. 

 

• different

• the same

Use the following slide to complete pg 24 in your booklet

Categorize

Options (12)

new shape

change of state

size changed

length changed

smoke

precipitate forms

new substance created

heat released

light released

smells

bubbles

color change

Organize these options into the right categories

Evidence of a physical change

Evidence of a chemical change

Use the following slide to complete pg 25 in your booklet

Multiple Choice

Melting Ice

• Physical Change

• Chemical Change

Multiple Choice

Burning Wood

• Physical Change

• Chemical Change

Multiple Choice

Breaking Glass

• Physical

• Chemical

Multiple Choice

Burning Propane

• Physical

• Chemical

Multiple Choice

Digesting French Fries

• Physical

• Chemical

Multiple Choice

Smashing a pumpkin

• Physical

• Chemical

Complete the rest of page 25

Use the video to complete page 26 define the type of reaction and complete the picture.

Use the following questions to complete pg 27.

Multiple Choice

NaCl+AgNO₃=NaNO₃+AgCl

• Synthesis

• Decomposition

• Singe Replacement

• Double Replacement

Multiple Choice

2H₂ + O₂ = 2H₂O

• Synthesis

• Decomposition

• Singe Replacement

• Double Replacement

Multiple Choice

Fe + CuSO₄ = FeSO₄ + Cu

• Synthesis

• Decomposition

• Singe Replacement

• Double Replacement

Multiple Choice

C₃H₈ + 5O₂ = 3CO₂ + 4 H₂O

• Synthesis

• Decomposition

• Singe Replacement

• Combustion

Multiple Choice

2KClO₃ = 2KCl + 3O₂

• Synthesis

• Decomposition

• Singe Replacement

• Combustion

• Congratulations your done!

• Your booklet pages 22,24,25,26,&27 should be done.

• If you didn't get a good score on this you are welcome to do it again to get a better score.