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