Chemistry Review 2: Question Preview (ID: 600)

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The halogens are located where on the periodic table?
a) Group 1
b) Periods 6 & 7
c) Group 18
d) Group 17

Which of the following is a mixture?
a) carbon dioxide -
b) sodium chloride
c) air
d) ammonia

Which of the following is NOT a compound?
a) water
b) ammonia
c) gold
d) salt

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) These elements are very stable and do not react easily with other elements.
b) They are all lighter than air and dissolve easily in water.
c) They are less reactive than the alkali metals in group 1.
d) They all react with many lanthanide metals to form nutrients.

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 so stable that they do not react easily with anything.
c) These elements are very common in the atmosphere.
d) These elements react with many non-metlas to form electrolytes.

What is the atomic weight of copper?
a) 63.55
b) 29
c) 27
d) 58.933

Based on their locations on the periodic table, which pair of elements have the most similar characteristics?
a) Ca and Cu
b) Be and Bi
c) Ne and Ar
d) Si and Cl

On the periodic table, an element's atomic number is the number of _____ in its nucleus.
a) protons
b) electrons
c) isotopes
d) neutrons

Salt water is a(n)
a) solution.
b) suspension.
c) colloid.
d) compound.

A solution that contains a large amount of solute is best described as
a) a colloid.
b) concentrated.
c) a solution.
d) dilute.

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