Download Sample for Exam 1 - General Chemistry I | CHEM 1010 and more Exams Chemistry in PDF only on Docsity!
You should study your test, study your Handbook modules, and review your drill quizzes BEFORE taking this exam.
When taking it you should do so under exam conditions, i.e. alone, using only a calculator and periodic table, and
waiting until you have completely finished before checking your answers.
1: What volume would 9.0 grams of a substance occupy if its density (in g/mL) is 0.17?
A: 4.2*
mL B: 5.3*
mL C: 9.0*
mL D: 1.9*
mL E: 1.5*
mL
2: K-TYPE answer format: Mark a if A,B,C are correct; b if A, C; c if B, D; d if D only; e otherwise.
A: The approximate mass of an atom of an element equals the number of protons plus the number of neutrons
expressed in amu.
B: The charge on the nucleus of an atom is due to the electrons in it.
C: The atomic number is equal to the number of protons in an atom.
D: 18
N is an isotope of
O.
3: K-TYPE answer format: Mark a if A,B,C are correct; b if A, C; c if B, D; d if D only; e otherwise.
A: The oxidation number of N in NH 3
is -3.
B: Oxygen usually has an oxidation number of -2 in compounds.
C: The oxidation number of C in CO 3
is +4.
D: The oxidation number of Rb in Rb(s) is +1.
4: K-TYPE answer format: Mark a if A,B,C are correct; b if A, C; c if B, D; d if D only; e otherwise.
A: If fluorine reacts with iodine, a covalent compound will result. (2-6)
B: When cesium forms an ionic compound, it would appear as a +1 ion. (2-7)
C: Ionic bonding is bonding which results from the attraction of oppositely charged ions. (2-6)
D: If the empirical formula of a substance is HCO and its molecular weight is 58, the molecular formula of the
compound would be H 3
C
O
5: Choose the correct statements regarding
Cl
using K-TYPE answer format: Mark a if A,B,C are correct; b if
A, C; c if B, D; d if D only; e otherwise.
A: The species contains 17 neutrons.
B: The species contains 18 electrons.
C: A species with 16 protons and 21 electrons would be an isotope of the species.
D: The species contains 17 protons.
You should study your test, study your Handbook modules, and review your drill quizzes BEFORE taking this exam.
When taking it you should do so under exam conditions, i.e. alone, using only a calculator and periodic table, and
waiting until you have completely finished before checking your answers.
6: If 1.181 grams of an element X reacts with oxygen to form 1.664 grams of the compound X 2
O
, what is the symbol
of the element X? (Challenge)
A: Ca B: K C: C D: Co E: Fe
7: If barium reacts with nitrogen, the formula of the compound formed is likely to be
A: BaN 2
B: Ba 2
N C: BaN D: Ba 2
N
E: Ba 3
N
8: K-TYPE answer format: Mark a if A,B,C are correct; b if A, C; c if B, D; d if D only; e otherwise.
A: Neon and helium are in the same group of the periodic table.
B: Nitrogen is a halogen.
C: Hydrogen, neon, and oxygen occur as gases under normal conditions.
D: Fluorine, oxygen, and phosphorous occur as diatomic species under normal conditions.
9: Identify the pairs which correctly match name and formula using K-TYPE answer format (Mark a if A, B, C are
correct; b if A, C; c if B, D; d if D only; e otherwise.) (2-10)
A: nitrate ion ( NO 2
B: carbonate ion ( CO 2
C: chloride ion ( ClO
D: arsenate ion ( AsO 4
10: How many grams of ethanol (C 2
H
OH) must be burned in order to use up 3.2 grams of oxygen?
A: 4.2 B: 1.5 C: 0.033 D: 2.1 E: 0.
You should study your test, study your Handbook modules, and review your drill quizzes BEFORE taking this exam.
When taking it you should do so under exam conditions, i.e. alone, using only a calculator and periodic table, and
waiting until you have completely finished before checking your answers.
16: Identify the equations which correctly match reactants and products without regard to whether the equations are balanced
using K-TYPE answer format. (Mark a if A,B,C are correct; b if A, C; c if B, D; d if D only; e
otherwise.) (Note: States, if given, are correct.) (3-3)
A: C
H
+ O
Þ CO
+ H
B: Rb + H 2
O Þ RbOH + O 2
C: H
SO
+ KOH Þ KSO
+ H
O
D: Na 3
PO
(aq) + NiSO 4
(aq) Þ Ni 3
(PO
(s) + Na 2
SO
(aq)
Answer Sheet for Test “C1.H1.Library2”, 5/8/
Chem 1010 4th Sample for Hour Exam 1 (Modules 1, 2, & 3) Updated by SJB, 4/
You should study your test, study your Handbook modules, and review your drill quizzes BEFORE taking this exam.
When taking it you should do so under exam conditions, i.e. alone, using only a calculator and periodic table, and
waiting until you have completely finished before checking your answers.
No. in
Q-Bank
No. on
Test Correct Answer
1 3 1 B
6 3 2 B
10 3 3 A
4 3 4 A
5 3 5 C
16 3 6 D
2 3 7 E
3 3 8 B
9 3 9 D
11 3 10 B
12 3 11 B
15 3 12 D
14 3 13 C
13 3 14 A
7 3 15 D
8 3 16 D
