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Unit Test 1 Review- Matter And Chemistry
Test Description: Students Review for their unit test on Matter and Chemistry
Instructions: Answer all questions to get your test result.
1) What characteristic of Aluminum allows it to be made into Aluminum foil?
A
It is soluble
B
It is magnetic
C
It is malleable
D
It is dense
2) Which pure substance is composed of more than one element?
A
Carbon
B
Gold
C
Water
D
Sodium
3) Which of the following would best explain why the mass of the reactants is greater than that of the products in a chemical reaction?
A
The reaction occurred in a closed test tube and the salinity of the reactants was high
B
The reaction occurred in an open test tube and a gas was produced.
C
The reaction occurred in an open test tube and a solid was produced.
D
The reaction occurred in a closed test tube, and the temperature of the reactants was low.
4) What is the best way to determine if an object is made of pure silver
A
test to see if the object is chemically reactive
B
compare the mass of the silver object to the mass of a piece of pure silver
C
determine the solubility of the object
D
determine the density of the object and compare to the known density of pure silver
5) Which is a naturally occurring chemical?
A
plastic
B
nylon
C
salt
D
aspirin
6) Which of the following would tell you an element is a poor conductor of heat?
A
The element's location on the periodic table is left of the zigzag line
B
The element's location on the periodic table is right of the zigzag line
C
The element is malleable
D
The element is highly reactive.
7) If 5 grams of chemical X and 10 grams of chemical Y combine, what is the most likely mass of chemical XY
A
10 grams
B
50 grams
C
15 grams
D
5 grams
8) How can a scientist using the periodic table find an element with properties similar to another element?
A
by comparing malleability
B
by finding its periodic group
C
by comparing density
D
by comparing atomic weight
9) The element silicon is best used for which purpose
A
as a container to keep coffee hot
B
as a malleable material for coins and jewelry
C
as a material to make airplane frames
D
as a semiconductor in computer chips
10) Which is an example of a physical change?
A
rotting
B
boiling
C
rusting
D
burning
*select an answer for all questions
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