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Chistry Ch 7 Descriing Chical Composition.doc .
1.1 Multiple Choice and Bimodal Questions
1) Solids have a __________ shape and are not appreciably __________.
A) definite, compressible
B) definite, incompressible
C) indefinite, compressible
D) indefinite, incompressible
E) sharp, convertible
Answer: A
Diff: 1
Page Ref: Sec. 1.2
2) __________ is the chemical symbol for elemental sodium.
A) S
B) W
C) So
D) Na
E) Sn
Answer: D
Diff: 1
Page Ref: Sec. 1.2
3) If matter is uniform throughout and cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an) __________.
A) heterogeneous mixture
B) element
C) homogeneous mixture
D) compound
E) mixture of elements
Answer: D
Diff: 3
Page Ref: Sec. 1.2
4) The symbol for the element potassium is __________.
A) Pt
B) P
C) K
D) S
E) Ca
Answer: C
Diff: 1
Page Ref: Sec. 1.2
5) The symbol for the element magnesium is __________.
A) Rb
B) Mn
C) Ne
D) Si
E) Mg
Answer: E
Diff: 1
Page Ref: Sec. 1.2
6) The initial or tentative explanation of an observation is called a(n) __________.
A) law
B) theory
C) hypothesis
D) experiment
E) test
Answer: C
Diff: 2
Page Ref: Sec. 1.3
7) A concise verbal statement or mathematical equation that summarizes a broad variety of observations and experiences is called a(n) __________.
A) law
B) theory
C) hypothesis
D) experiment
E) test
Answer: A
Diff: 2
Page Ref: Sec. 1.3
8) A separation process that depends on differing abilities of substances to form gases is called __________.
A) filtration
B) solvation
C) distillation
D) chromatography
E) All of the above are correct.
Answer: C
Diff: 3
Page Ref: Sec. 1.3
9) The SI unit for mass is __________.
A) kilogram
B) gram
C) pound
D) troy ounce
E) none of the above
Answer: A
Diff: 1
Page Ref: Sec. 1.4
10) A one degree of temperature difference is the
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