Name:___________________________ Period: 1 2 3 4 5 6 7 Date:____________________
Chemistry
Study Guide
1. What is a physical property?
2. List 15 examples of physical properties.
3. What is a chemical property?
4. List 10 examples of chemical properties.
5. Most items vary based on their physical and chemical properties. Give examples of items that
have the following physical and chemical properties.
A. Reacts with water:
B. Doesn’t react with water:
C. Flammable:
D. Non-flammable:
E. Hard:
F. Soft:
G. Flexible:
H: Non-flexible:
I: Evaporates at room temperature:
J: Melts at room temperature:
6. List 5 physical and 5 chemical properties for an apple.
Physical
Chemical
A.
A.
B.
B.
C.
C.
D.
D.
E.
E.
7. A change in shape, size, or ___________ generally means a physical reaction has taken place.
8. There are six points of visible evidence that chemical change has taken place. Name them
below and provide an chemical change example for each point of evidence.
Evidence
Example
A.
A.
B.
B.
C.
C.
D.
D.
E.
E.
F.
F.
9. Many chemical reactions involve the use of atmospheric oxygen. List and describe 4 such
reactions below.
A.
B.
C.
D.
10. Chemical changes effect both physical and chemical properties. Use an example of cooking
a raw egg to explain this scientific idea.
11. Chemical changes often produce energy in the forms of heat, light, or sound. Provide 3
different examples below of chemical reactions that produce a production of heat, light, and
sound.
A. HeatB. LightC. Sound12. How does the amount of energy in a substance effect the molecules movement in that
substance?
13. Does a gas or a solid of the same substance such as water have more energy? Why?
14. Draw a line graph of what water looks like heating up over time. Label the phases and phase
changes on the graph.
15. What do the terms endothermic and exothermic mean?
16. During our chemistry in a bag lab we investigated how heat can be taken in or given off
during a reaction. Outside of that reaction describe two real world reactions that give off heat or
take in heat.
Take in Heat:
Release Heat:
17. When we did our alka-seltzer rocket lab many of you tested the temperature of the water as
one of your variables. How did the addition of heat effect you reaction? Explain why? How did
the addition of cold effect your reaction? Explain why?
Addition of Heat:
Addition of Cold:
18. What is the conservation of mass law? During our exploding corn lab we tested this law.
How did we test it?
Definition:
Lab Explanation:
19. Write out the equation for cellular respiration below. What are the reactants and products in
the reaction below? What happens to the atoms in this reaction? How many of each atom is
there in the reactants and in the products?
Equation:
Reactants Names:
Products Names:
What happened to the atoms in this chemical reaction and all chemical reactions:
How many of each atom is in the reactants:
How many of each atom is in the products:
20. List and describe 5 chemical reactions I might see in my everyday life. How do I know each
of these is a chemical reaction?
A.
B.
C.
D.
E.
21. I decide to bake cookies tonight and when I go home I take the mass of all the ingredients
before I mix them together. After I make cookies with the ingredients I take the mass of all the
cookies. Will they be the same? Why?
22. Think back to our mysterious blue liquid lab or our alka seltzer rocket lab. What are
multiple ways I can increase or decrease the rate or speed of a chemical reaction?
Increase:
Decrease:
23. What are some ways that scientists have used chemistry to engineer inventions that we may
use in our everyday life? List 3 examples below.
A.
B.
C.
24. Define the following chemistry vocabulary terms:
A. Atom:
B. Molecule:
C. Chemical Energy:
D. Reactants:
E. Products:
25. What are the 4 main differences between chemical and physical reactions?
Physical
Chemical
1.
1.
2.
2.
3.
3.
4.
4.
26. Chemistry involves doing plenty of experiments and labs. Every good experiment should
include an independent variable, dependent variable, and a control. Define those terms below.
Independent Variable:
Dependent Variable:
Control:
27. Mr. Archibald has invented a brain power machine that when utilized for one hour a day
increases the intelligence of any individual who uses it. How could I test my new invention
using the scientific method? (Hint: Independent Variable, Dependent Variable, Control, etc.)