Question 1

Which of the following compound names is not correct?

Accepted Answer

A)  strontium dinitrate
B)  sodium oxide
C)  copper(II) carbonate
D)  potassium permanganate
E)  silver chlorideF) A) and D)
G) All of the above

Question 2

A molecular compound is composed of atoms of a metal and a nonmetal.

Accepted Answer

A) True 
 B)False

Question 3

What is the formula for a compound composed of Ca2+ ions and PO43− ions?

Accepted Answer

A)  CaPO4
B)  Ca2(PO4) 3
C)  Ca3(PO4) 2
D)  Ca(PO4) 2
E)  Ca(PO4) 3F) A) and C)
G) B) and C)

Question 4

Which of the following best describes HCl when dissolved in water?

Accepted Answer

A)  strong electrolyte
B)  weak electrolyte
C)  nonelectrolyte
D)  exists as atoms and molecules
E)  exists as molecules onlyF) B) and E)
G) A) and B)

Question 5

Methane, CH4, and acetic acid, CH3CO2H, are both acids because they both contain hydrogen.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is formed when Ca(NO3) 2 dissolves in water?

Accepted Answer

A)  Ca2+ + (NO3) 22-
B)  Ca + (NO3) 2
C)  Ca+ + 2NO3-
D)  Ca2+ + 2NO3−
E)  Ca2+ + 2N3- + 6O2-F) B) and C)
G) A) and B)

Question 7

The figure shows all but which of the following?

Accepted Answer

A)  two elements and a compound
B)  a chemical reaction
C)  one mixture and one pure substance
D)  three compoundsE) B) and D)
F) A) and D)

Question 8

Which of the following is the correct formula for the nitride ion?

Accepted Answer

A)  N2
B)  NO2-
C)  NO3-
D)  N23-
E)  N3-F) D) and E)
G) All of the above

Question 9

The compound ClO3 is a dark brown solid powder that is not stable above 25ºC. Name this molecular compound.

Accepted Answer

A)  chlorine trioxide
B)  chlorine oxide
C)  chlorate
D)  chlorite
E)  chlorine(VI) oxideF) A) and D)
G) A) and E)

Question 10

Based on common charges, which formula for an ionic compound is incorrect?

Accepted Answer

A)  LiCO3
B)  NaBr
C)  CaO
D)  SrS
E)  MgCl2F) A) and B)
G) B) and E)

Question 11

Which of the following combinations of elements in a compound would be molecular?

Accepted Answer

A)  sodium and nitrogen
B)  calcium and oxygen
C)  nitrogen and oxygen
D)  potassium and chlorine
E)  sodium and sulfurF) A) and B)
G) C) and E)

Question 12

The images in the figure represent aqueous solutions of ionic compounds. Which could correspond to BaCl2? 2?   A) I only B) II only C) III only D) I and III E) II and III" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  I only
B)  II only
C)  III only
D)  I and III
E)  II and IIIF) A) and E)
G) A) and D)

Question 13

When naming binary molecular compounds, it is always unnecessary to use Greek prefixes.

Accepted Answer

A) True 
 B)False

Question 14

Which combination of formula and name is incorrect?

Accepted Answer

A)  Na+ = sodium ion
B)  Ca2+ = calcium ion
C)  N2- = nitride ion
D)  F- = fluoride ion
E)  O2- = oxide ionF) C) and E)
G) B) and C)

Question 15

Polyatomic ions that contain oxygen attached to some other element are called oxoanions.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following formula/name pairs is incorrect?

Accepted Answer

A)  K2SO4 potassium sulfate
B)  Na3N sodium nitride
C)  Li2CO3 lithium carbonate
D)  Fe2O3 iron(II) oxide
E)  Cu2S copper(I) sulfideF) A) and D)
G) C) and D)

Question 17

The formula for the permanganate ion is:

Accepted Answer

A)  MnO4-
B)  MnO22-
C)  MnO3-
D)  MnO32-
E)  MnO42-F) D) and E)
G) A) and D)

Question 18

Which of the following formula/name pairs is incorrect?

Accepted Answer

A)  MnO manganese(II) oxide
B)  CaO calcium oxide
C)  MgCl2 magnesium chloride
D)  AlP aluminum phosphide
E)  Li2SO3 dilithium sulfiteF) B) and D)
G) B) and C)

Question 19

From their position in the periodic table, we would predict that both oxygen and sulfur would have a charge of 2− in a binary ionic compound.

Accepted Answer

A) True 
 B)False

Question 20

Which combination of formula and name is incorrect?

Accepted Answer

A)  K+ = potassium ion
B)  I- = iodide ion
C)  Mg+ = magnesium ion
D)  S2- = sulfide ion
E)  N3- = nitride ionF) B) and C)
G) D) and E)

Exam 3: Chemical Compounds

Polyatomic ions that contain oxygen attached to some other element are called oxoanions.

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Which combination of formula and name is incorrect?

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Which of the following combinations of elements in a compound would be molecular?

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Which combination of formula and name is incorrect?

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A molecular compound is composed of atoms of a metal and a nonmetal.

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Methane, CH4, and acetic acid, CH3CO2H, are both acids because they both contain hydrogen.

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Which of the following compound names is not correct?

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From their position in the periodic table, we would predict that both oxygen and sulfur would have a charge of 2− in a binary ionic compound.

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Which of the following formula/name pairs is incorrect?

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The formula for the permanganate ion is:

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What is the formula for a compound composed of Ca2+ ions and PO43− ions?

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Which of the following formula/name pairs is incorrect?

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The figure shows all but which of the following?

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Based on common charges, which formula for an ionic compound is incorrect?

Correct AnswerverifiedShow Answer

The compound ClO3 is a dark brown solid powder that is not stable above 25ºC. Name this molecular compound.

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When naming binary molecular compounds, it is always unnecessary to use Greek prefixes.

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Which of the following best describes HCl when dissolved in water?

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Which of the following is the correct formula for the nitride ion?

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The images in the figure represent aqueous solutions of ionic compounds. Which could correspond to BaCl2?

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Which of the following is formed when Ca(NO3) 2 dissolves in water?

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Methane, CH₄, and acetic acid, CH₃CO₂H, are both acids because they both contain hydrogen.

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What is the formula for a compound composed of Ca²⁺ ions and PO₄³⁻ ions?

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The compound ClO₃ is a dark brown solid powder that is not stable above 25ºC. Name this molecular compound.

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The images in the figure represent aqueous solutions of ionic compounds. Which could correspond to BaCl₂?

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Which of the following is formed when Ca(NO₃) ₂ dissolves in water?

Correct Answer
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