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Chemistry #2
Test Description: Chemistry
Instructions: Answer all questions to get your test result.
1) There are the same number of protons as there are electrons in an atom.
A
False
B
True
2) What are the two major elements that make up the Earth's Crust?
A
Chlorine and Argon
B
Aluminum and Sulphur
C
Nitrogen and Oxygen
D
Oxygen and Silicon
3) What does the polarity of water molecules cause?
A
Water molecules to stick together like magnets
B
Water moleucles to freeze
C
Water molecules to disappear
D
Water molecules to move away from each other
4) How many atoms of magnesium are found in H4Mg3Si2O9?
A
2
B
3
C
1
D
4
5) What is the chemical formula for table salt?
A
SAr
B
ClNe
C
CO2
D
NaCl
6) What is the chemical symbol for Hydrogen?
A
O
B
N
C
H
D
He
7) What is the chemical symbol for Lithium?
A
C
B
Ar
C
Li
D
B
8) What is the simplest and most abundent element in the universe?
A
Helium
B
Oxygen
C
Boron
D
Hydrogen
9) The tightness acress the surface of water that is caused by polar molecules pulling on each other is called what?
A
Water Adehsion
B
Surface Tension
C
Hard Bed
D
Pillow Top
10) As you drive your car thoruogh a rain stom water droplets stick to your window and occasionally run down the window. Why?
A
They are sticky
B
Cohesion
C
Ahesion
D
They want to look at you.
*select an answer for all questions
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