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