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Chemistry Review SLO
Test Description: Utah SLO Review
Instructions: Answer all questions to get your test result.
1) A good experiment contains the following:
A
Two or three independent variables you change and a control test.
B
One independent variable you change and a control test you compare it to.
C
As many independent variables as possible will help make it a good experiment.
D
One independent variable you change and no control test.
2) What property of gold makes it useful in jewelry making?
A
It’s malleable and can be molded to different shapes
B
It's magnetic
C
It rusts
D
It’s very dense
3) What is a property of water that makes it useful for putting out fires?
A
It is not flammable
B
It is clear
C
It absorbs a lot of heat
D
It boils at 100 degrees celsius
4) Which of these is the best definition for natural?
A
Changed physically by man but not chemically.
B
Changed chemically by man but not physically
5) Which of these is the best definition of Synthetic?
A
Changed physically by man but not chemically.
B
Changed chemically by man but not physically.
6) T/F Synthetic things come from Natural things.
A
False
B
True
7) Which of the following best describes what a chemical reaction is?
A
Molecules reproduce to make new substances
B
Molecules stay the same but their properties change
C
Atoms gain or lose protons to make new substances
D
Atoms rearrange to make new molecules
8) How do you know when a chemical reaction has occurred?
A
the mass of the reactants is changed into energy that is given off
B
the substance changes size, shape, texture and mass
C
a new substance has formed; it would be hard to reverse
D
a phase change has occurred; it would be easy to reverse
9) (T/F) In a chemical reaction, bonds between atoms are broken, and atoms rearrange and form new bonds.
A
True
B
False
10) At a family barbeque your Uncle Billy Bob Jr. puts a steak on the grill. Which of the following uses evidence to describe what is happening to the meat?
A
It is not a chemical reaction because there is a new smell and taste.
B
It is a chemical reaction because you are mixing the BBQ sauce and the meat.
C
It is a chemical reaction because there is a new smell, taste, and color.
D
It is not a chemical reaction because only the color changes.
*select an answer for all questions
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