1. Compounds and Mixtures
SPI , SPI
Compounds and Mixtures

2. Bell Work
1. If you were absent take a pic or copy assignment from the board.
Grab a small sheet, large sheet, and a glue stick.
2. Get out a sheet of paper and title it “Compounds vs. Mixtures” and number it 1-8
3. Start a new section called “Compounds vs. Mixtures”
4. In the back of your science notebook please differentiate between an element and a compound.
5. Also, give me 3 examples of compounds including their chemical name and chemical formula.
I SHOULD NOT BE WAITING ON YOU!!! (LET’S NOT DO WRITE-OFFS, MAKE GOOD CHOICES AND FOLLOW DIRECTIONS)

3. Element or Compound? Ag
CO2
3Fe N3
NaCl He
C6H12O6
NaHCOOH3

4. Objective: Differentiate between a mixture and a compound.
(SPI )

5. Compounds
A pure substance that forms when two or more elements join chemically.
(Bonded by sharing or exchanging of electrons.)
This is why it is so hard to separate a compound back into the elements that formed it.
The only way you can separate a compound is though a chemical reaction.

6. Mixtures
A mixture is a combination of two or more substances that are NOT chemically joined or bonded together.
Sometimes can be separated by physical means.
Alloy- mixture of metals (ex. Bronze alloy)
There are two types: heterogeneous and homogeneous mixtures

7. 2 TYPES OF MIXTURES
Homogeneous mixture (SOLUTION)- a mixture that is evenly mixed (uniform) throughout.
What are some examples of homogeneous mixtures or solutions?

8. EVENLY MIXED
Homogeneous mixture (SOLUTION)- a mixture that is evenly mixed (uniform) throughout.
Ex.- salt or sugar water, sweet tea, coffee, mouthwash, kool-aid

9. UNEVENLY MIXED
Heterogeneous mixture- a mixture that is unevenly mixed. (not uniform)
Can be separated by sifting.
What are some examples of HETEROGENEOUS mixtures?

10. Mixtures
Heterogeneous mixture- a mixture that is unevenly mixed. (not uniform)
Can be separated by sifting.
Ex. Chicken noodle soup, cereal, Italian Dressing, Trail Mix

11. Glue this in.

12. Classifying Matter: Please draw this.
Pure Substances
Mixtures
Heterogeneous
Mixtures
Homogeneous
Mixtures
Elements
Compounds
Oxygen- O
Sodium- Na
Carbon- C
Salt- NaCl
Carbon Dioxide-
CO2
Cereal
Chicken Noodle
Soup
Salt Water
Mouthwash
Coffee

13. Compounds vs. Mixtures
When elements form compounds, the elements lose their properties.
When elements form mixtures, the elements keep their original properties.
WHY???

14. ECM Visuals
ELEMENT
COMPOUND
MIXTURE

15. E,C,M???

17. Objective Differentiate between a mixture and a compound.
(SPI )

18. Assessment
1. Soil is made up of pieces of rocks, wood, decayed plants, and many other materials. What is soil?
A. an atom
B. an element
C. a compound
D. a mixture

19. Assessment
2. Which statement best describes the difference between a mixture and a compound?
A. Compounds are pure elements.
B. Compounds can be easily separated into distinct parts.
C. Compounds have multiple boiling points.
D. Compounds are elements bonded together.

20. Assessment 3. Which of these is an example of a mixture? A. salt, NaCl
B. Pure gold
C. salt water
D. water, H2O

21. Assessment
4. What is another name for a mixture that contains two or more substances that are evenly mixed on the molecular level?
A. a precipitate
B. a solute
C. homogeneous mixture
D. a compound

22. Assessment
5. A bowl of chips, pretzels, and peanuts is an example of a
A. compound
B. solution
C. homogeneous mixture
D. heterogeneous mixture

23. Assessment
6. A combination of salt and sugar grains is best classified as a mixture because
F. the grains taste different from one another.
G. both the salt and sugar grains are in the same state of matter.
H. no new chemical bonds are formed between the salt and sugar grains.
J. a new product is formed when salt and sugar grains are combined.

24. Assessment
7. Which of the following does not represent a mixture?  A.  NaCl + H2O  B.  Fe2O3  C.  N2 + O2  D.  SiO2 + C6H12O6

25. 8.
A student observes that the contents of a bowl are not uniform throughout can be separated by straining. What type of substance is the student studying?
an element C) a compound
a homogeneous D) a heterogeneous
mixture mixture

26. 9.
Which of the following can be separated into simpler substances only by chemical means?
A. water
B. gold
C. salt water
D. sodium

27. 10.
In what classification of matter are the components chemically combined?
A. element
B. mixture
C. compound
D. alloy

28. Get out a sheet of paper and number it 1-48
Put your article questions (not the article) and chart in the basket.
Then please copy chart in to your “Atmosphere” notes.

29. Put your test and answer sheet at the top of your table.
Please come get a study guide when you finish and begin working on it.
If you were absent yesterday you should be working on the article and chart/questions.
COPY THESE SOMEHWERE ON YOUR STUDY GUIDE.
Solute- substance that dissolves in a solvent
Solvent- substance in which a solute dissolves

30. Bell Work
Please grab a high lighter and the article, “Getting Together: An Introduction to Compounds” off of the front table.
Also please get out the article from yesterday, “What are Elements?”
Please sit down and be ready to present your projects.
You need to be ready to go when the bell rings.
Everyone should be seated and getting quiet.