1. Notes Science Tennessee SPI Objective: Identify the common outcome of
Chemical Change Outcomes
Notes
Science
Tennessee SPI Objective:
Identify the common outcome of
all chemical changes.
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Essential Learning
Students will examine chemical change outcomes
to determine common results.
Essential Question(s)
How do I recognize that a chemical change has
occurred, and what are the common outcomes
of chemical reactions?

2. Chemical Change Outcomes
SPI
Chemical Change Outcomes
Notes
Science
Chemical Changes
Occur when 2 or more substances, due to a chemical reaction, form a compound & change into a new substance.
Compounds are formed when you combine 2 or more or more different reactive elements
Atomic bonds break apart and new atomic bonds are formed
Valence Electrons are transferred or shared
(F.Y.I. This is called ionic & covalent bonding)
….so in other words
chemical changes, chemical bonding and chemical reactions are all connected
Chemical bonding occurs during a chemical reaction resulting in a chemical change

3. -forms a compound called NaCl (table salt)
Just F.Y.I.
Chemical Reaction due to Ionic Bonding -bond formed by electron transfer ("stealing")
-forms a compound called NaCl (table salt)

4. -Forms a diatomic molecule called N2
Just F.Y.I
Chemical Reaction due to Covalent Bonding -bond formed by sharing of electrons
-Forms a diatomic molecule called N2
Notes

5. Chemical Change Outcomes (chemical reactions = compounds)
SPI
Chemical Change Outcomes
Notes
Science
Compounds
Compounds are formed from chemical reactions
Memory Trick
C = C
(chemical reactions = compounds)
Example: When two hydrogen atoms react with one oxygen atom you produce (form) the compound called water (H2O). H
Oxygen H
Oxygen H

6. Chemical Change Outcomes 5 Key Points About All Chemical Reactions:
SPI
Chemical Change Outcomes
Notes
Science
5 Key Points About All Chemical Reactions:
1) A new substance is created
2) The properties of the new substance are different from the substances that you started with
3) No atoms are created or destroyed during chemical reactions
4) Atomic bonds are broken and new bonds are formed (at the valence electron level)
5) compounds come from chemical reactions

7. Chemical Change Outcomes Chemical reactions can H.O.P.E.
SPI
Chemical Change Outcomes
Notes
Science
Memory Trick
Chemical reactions can H.O.P.E.
Chemical Change Indicators-Memory Trick
H.O.P.E.
H: Heat-Heat may be given off (it may get hot)
O: Odor-There may be a change in odor (how it smells)
P: Pop-It may pop or bang (make a loud noise)
E: Explode-It may explode (like fire crackers or dynamite)

8. Chemical Change Outcomes Chemical reactions can 4FPC
SPI
Chemical Change Outcomes
Notes
Science
Memory Trick
Chemical reactions can 4FPC
Chemical Change Indicators-Memory Trick
4FPC
F: Foam-It may foam (like vinegar & baking soda)
F: Flash-It may flash (like a grenade or gun powder)
F: Fizzle-It may fizzle (make a hissing sound like Alka-Seltzer)
F: Flame- It may burn (like burning paper or wood)
P: Precipitate-It may form a solid substance (called a precipitate)
C: Color- It may change color (red to blue, green to orange, etc.)

9. Chemical Change Outcomes
SPI
Chemical Change Outcomes
Science
Questions
Sample Question
Here is an example of a question you might see on a quiz or test.

10. Chemical Change Outcomes
SPI
Chemical Change Outcomes
Science
Questions
Sample Question
Here is an example of a question you might see on a quiz or test.

11. Chemical Change Outcomes
SPI
Chemical Change Outcomes
Science
Questions
Sample Question
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12. Chemical Change Outcomes
SPI
Chemical Change Outcomes
Science
Questions
Sample Question
Here is an example of a question you might see on a quiz or test.

13. Chemical Change Outcomes
SPI
Chemical Change Outcomes
Science
Questions
Sample Question
Here is an example of a question you might see on a quiz or test.