Test Bank For Chemistry The Central Science 14th Edition Brown
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Chemistry - Test Bank
Institución
Chemistry - Test Bank
Chemistry: The Central Science, 14e (Brown, et al.)
Chapter 3 Chemical Reactions and Reaction Stoichiometry
3.1 Multiple-Choice Questions
1) When the following equation is balanced, the coefficients are ________.
C8H18 + O2 → CO2 + H2O
A) 2, 3, 4, 4
B) 1, 4, 8, 9
C) 2, 12, 8,...
,Chemistry: The Central Science, 14e (Brown, et al.)
Chapter 1 Introduction: Matter, Energy, and Measurement
1.1 Multiple-Choice Questions
1) What is the physical state in which matter has a specific volume but does not have a specific
shape?
A) gas
B) solid
C) liquid
D) salts
E) ice
Answer: C
Diff: 1 Var: 1 Page Ref: Sec. 1.2
LO: 1.2
GO: G2
2) The law of constant composition applies to ________.
A) solutions
B) heterogeneous mixtures
C) compounds
D) homogeneous mixtures
E) solids
Answer: C
Diff: 1 Var: 1 Page Ref: Sec. 1.2
LO: 1.1
GO: G2
3) A combination of sand, salt, and water is an example of a ________.
A) homogeneous mixture
B) heterogeneous mixture
C) compound
D) pure substance
E) solid
Answer: B
Diff: 1 Var: 1 Page Ref: Sec. 1.2
LO: 1.1
GO: G2
,4) A small amount of salt dissolved in water is an example of a ________.
A) homogeneous mixture
B) heterogeneous mixture
C) compound
D) pure substance
E) solid
Answer: A
Diff: 1 Var: 1 Page Ref: Sec. 1.2
LO: 1.2
GO: G2
5) Which one of the following has the element name and symbol correctly matched?
A) S, sodium
B) Tn, tin
C) Fe, iron
D) N, neon
E) B, bromine
Answer: C
Diff: 1 Var: 1 Page Ref: Sec. 1.2
LO: 1.2
GO: G2
6) Which one of the following elements is identified by the chemical symbol, Al?
A) tin
B) aluminum
C) mercury
D) copper
E) lead
Answer: B
Diff: 2 Var: 1 Page Ref: Sec. 1.2
LO: 1.2
GO: G2
7) Which one of the following is often separated into its components by simple techniques such
as filtering or decanting?
A) heterogeneous mixture
B) compounds
C) homogeneous mixture
D) elements
E) solutions
Answer: A
Diff: 2 Var: 1 Page Ref: Sec. 1.2
LO: 1.1
GO: G2
, 8) Which states of matter are significantly compressible?
A) gases only
B) liquids only
C) solids only
D) liquids and gases
E) solids and liquids
Answer: A
Diff: 1 Var: 1 Page Ref: Sec. 1.2
LO: 1.2
GO: G2
9) For which of the following, can the composition vary?
A) pure substance
B) element
C) both homogeneous and heterogeneous mixtures
D) homogeneous mixture
E) heterogeneous mixture
Answer: C
Diff: 2 Var: 1 Page Ref: Sec. 1.2
LO: 1.1
GO: G2
10) If matter is uniform throughout and cannot be separated into other substances by physical
means, it is ________.
A) a compound
B) either an element or a compound
C) a homogeneous mixture
D) a heterogeneous mixture
E) an element
Answer: B
Diff: 2 Var: 1 Page Ref: Sec. 1.2
LO: 1.1
GO: G2
11) An element cannot ________.
A) be part of a heterogeneous mixture
B) be part of a homogeneous mixture
C) be separated into other substances by chemical means
D) interact with other elements to form compounds
E) be a pure substance
Answer: C
Diff: 2 Var: 1 Page Ref: Sec. 1.2
LO: 1.1
GO: G2
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