Chem 123 Chapter 14
Chemistry 123 Fall ’14
Exam I (CH I, II, III)
Instructions: Read each problem carefully before you begin. Be certain that you answers are clear and legible: Clearly Circle One Answer Only. Make sure to review you answers before you turn the exam in. Please place your answers on the answer sheet. You should also circle the correct letter for back up purposes.
Print your name: ___________________
Sign your name: ___________________
Answer Sheet
1
C
16
A
2
E
17
D
3
B
18
D
4
A
19
C
5
D
20
C
6
A
21
A
7
E
22
A
8
REMOVED
23
D
9
A
24
B
10
A
25
B
11
B
26
A
12
C
27
C
13
A
28
E
14
D
29
C
15
D
30
SOME KIND OF BALANCE EQ. QUESTION
1) Identify the description of an atom.
A) neutrons and electrons in nucleus; protons …show more content…
A) Isotopes of the same element differ only in the number of electrons they contain.
B) An isotope of an atom with a larger number of neutrons is larger than an isotope of the same atom that contains fewer neutrons.
C) Isotopes of the same element have the same mass.
D) Isotopes of the same element don't usually have the same properties.
E) Some elements have 3 or more naturally occurring isotopes.
Answer: E
3) Determine the number of protons, neutrons and electrons in the following: …show more content…
The symbol for the ion is
A) 17O2-
B) 17O2+
C) 19F+
D) 19F-
E) 17Ne2+
Answer: A
10) Identify a cation.
A) An atom that has lost an electron.
B) An atom that has gained an electron.
C) An atom that has lost a proton and a neutron.
D) An atom that has gained a neutron.
Answer: A
11) Identify an anion.
A) An atom that has lost an electron.
B) An atom that has gained an electron.
C) An atom that has lost a neutron and a proton.
D) An atom that has gained a neutron.
Answer: B
12) Identify a liquid.
A) definite volume and definite shape
B) definite volume and no definite shape
C) no definite shape and definite volume
D) no definite shape and no definite volume
Answer: B
13) Identify a solid.
A) definite volume and definite shape
B) definite volume and no definite shape
C) no definite shape and definite volume
D) no definite shape and no definite volume
Answer: A
Diff: 1 Page Ref: 1.3
14) Identify a gas.
A) definite volume and definite shape
B) definite volume and no definite shape
C) no definite shape and definite volume
D) no definite shape and no definite volume
Answer: D
15) A physical
Exam I (CH I, II, III)
Instructions: Read each problem carefully before you begin. Be certain that you answers are clear and legible: Clearly Circle One Answer Only. Make sure to review you answers before you turn the exam in. Please place your answers on the answer sheet. You should also circle the correct letter for back up purposes.
Print your name: ___________________
Sign your name: ___________________
Answer Sheet
1
C
16
A
2
E
17
D
3
B
18
D
4
A
19
C
5
D
20
C
6
A
21
A
7
E
22
A
8
REMOVED
23
D
9
A
24
B
10
A
25
B
11
B
26
A
12
C
27
C
13
A
28
E
14
D
29
C
15
D
30
SOME KIND OF BALANCE EQ. QUESTION
1) Identify the description of an atom.
A) neutrons and electrons in nucleus; protons …show more content…
A) Isotopes of the same element differ only in the number of electrons they contain.
B) An isotope of an atom with a larger number of neutrons is larger than an isotope of the same atom that contains fewer neutrons.
C) Isotopes of the same element have the same mass.
D) Isotopes of the same element don't usually have the same properties.
E) Some elements have 3 or more naturally occurring isotopes.
Answer: E
3) Determine the number of protons, neutrons and electrons in the following: …show more content…
The symbol for the ion is
A) 17O2-
B) 17O2+
C) 19F+
D) 19F-
E) 17Ne2+
Answer: A
10) Identify a cation.
A) An atom that has lost an electron.
B) An atom that has gained an electron.
C) An atom that has lost a proton and a neutron.
D) An atom that has gained a neutron.
Answer: A
11) Identify an anion.
A) An atom that has lost an electron.
B) An atom that has gained an electron.
C) An atom that has lost a neutron and a proton.
D) An atom that has gained a neutron.
Answer: B
12) Identify a liquid.
A) definite volume and definite shape
B) definite volume and no definite shape
C) no definite shape and definite volume
D) no definite shape and no definite volume
Answer: B
13) Identify a solid.
A) definite volume and definite shape
B) definite volume and no definite shape
C) no definite shape and definite volume
D) no definite shape and no definite volume
Answer: A
Diff: 1 Page Ref: 1.3
14) Identify a gas.
A) definite volume and definite shape
B) definite volume and no definite shape
C) no definite shape and definite volume
D) no definite shape and no definite volume
Answer: D
15) A physical