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CYB Chemistry Test 1
Test Description: 1st Test
Instructions: Answer all questions to get your test result.
1) Atoms of the noble gases are generally inert because —
A
they are not charged
B
they are neutral atoms
C
they are too large to react
D
their outer electron levels are filled
2) Sulfur has a Lewis Dot Structure with 6 electrons. Which of the elements has the same Lewis structure?
A
Magnesium
B
Phosphorus
C
Oxygen
D
Chlorine
3) Which of these best describes sublimation?
A
A solid changing to a liquid phase
B
A solid changing to a gaseous phase
C
A liquid taking the shape of its container
D
A gas filling the space in its container
4) When compared to sulfur-32, sulfur-34 has more —
A
bonding configurations
B
energy levels
C
protons
D
neutrons
5) What are shared in covalent bonds?
A
Anions
B
Protons
C
Cations
D
Electrons
6) The pH scale in general use ranges from
A
0 to 1
B
0 to 7
C
0 to 14
D
. -1 to 1
7) Across a period in the periodic table, atomic radii
A
gradually increase
B
gradually decrease, then sharply increase.
C
gradually decrease.
D
gradually increase, then sharply decrease.
8) Chlorine has atomic number 17 and mass number 35. It has
A
35 protons, 35 electrons, and 17 neutrons.
B
17 protons, 17 electrons, and 52 neutrons.
C
17 protons, 17 electrons, and 18 neutrons.
D
18 protons, 18 electrons, and 17 neutrons.
9) The chemical symbol for iron is _____.
A
FE
B
Fe
C
Ir
D
fe
10) Which of the following is a chemical change?
A
fermenting of cheese
B
melting cheese
C
grating cheese
D
mixing two cheeses in a bowl
*select an answer for all questions
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