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Chemistry Review 2
Test Description: Review for Chapters 3 & 5
Instructions: Answer all questions to get your test result.
1) The halogens are located where on the periodic table?
A
Group 1
B
Periods 6 & 7
C
Group 17
D
Group 18
2) Which of the following is a mixture?
A
air
B
sodium chloride
C
ammonia
D
carbon dioxide -
3) Which of the following is NOT a compound?
A
gold
B
water
C
salt
D
ammonia
4) Beryllium, magnesium and calcium are alkaline-earth metals located in group 2 of the periodic table. What else is true about the alkaline-earth metals?
A
They are less reactive than the alkali metals in group 1.
B
They all react with many lanthanide metals to form nutrients.
C
These elements are very stable and do not react easily with other elements.
D
They are all lighter than air and dissolve easily in water.
5) Helium, neon, and argon are all located in group 18 of the periodic table. What can you predict about these elements, based on their group?
A
These elements are unstable and will react easily with metals to form rust.
B
These elements are very common in the atmosphere.
C
These elements are so stable that they do not react easily with anything.
D
These elements react with many non-metlas to form electrolytes.
6) What is the atomic weight of copper?
A
27
B
58.933
C
63.55
D
29
7) Based on their locations on the periodic table, which pair of elements have the most similar characteristics?
A
Be and Bi
B
Si and Cl
C
Ca and Cu
D
Ne and Ar
8) On the periodic table, an element's atomic number is the number of _____ in its nucleus.
A
neutrons
B
protons
C
isotopes
D
electrons
9) Salt water is a(n)
A
compound.
B
suspension.
C
colloid.
D
solution.
10) A solution that contains a large amount of solute is best described as
A
a colloid.
B
a solution.
C
concentrated.
D
dilute.
*select an answer for all questions
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