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