Question 1

Determine the charge on the unknown ion, A, in the compound AO.

Accepted Answer

A)  +2
B)  +1
C)  -1
D)  -2E) A) and D)
F) All of the above

Question 2

What is the formula for lead(II)  oxide?

Accepted Answer

A)  PbO
B)  PbO2
C)  Pb2O
D)  PbO4
E)  Pb2O3F) C) and D)
G) D) and E)

Question 3

Which of these pairs of elements would be most likely to form an ionic compound?

Accepted Answer

A)  Cl and I
B)  Al and K
C)  Cl and Mg
D)  C and S
E)  Al and MgF) All of the above
G) A) and B)

Question 4

Which of these compounds is most likely to be ionic?

Accepted Answer

A)  NCl3
B)  BaCl2
C)  CO
D)  SO2
E)  SF4F) A) and C)
G) A) and B)

Question 5

What types of elements undergo ionic bonding?

Accepted Answer

A)  two metals
B)  a nonmetal and a metal
C)  two nonmetals
D)  two Group 1A elements
E)  two noble gasesF) B) and C)
G) A) and C)

Question 6

Which of the following is a covalent compound?

Accepted Answer

A)  Na2O
B)  CaCl2
C)  Cl2O
D)  CsCl
E)  Al2O3F) D) and E)
G) C) and E)

Question 7

The rusting of a piece of iron under environmental conditions is a physical change.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is the empirical formula for hexane, C6H14?

Accepted Answer

A)  C12H28
B)  C6H14
C)  C3H7
D)  CH2.3
E)  C0.43HF) C) and E)
G) A) and D)

Question 9

Which of the following elements exists as a diatomic molecule in the elemental state?

Accepted Answer

A)  Li
B)  Ne
C)  Cl
D)  CuE) B) and C)
F) None of the above

Question 10

If a liquid contains 60% sugar and 40% water throughout its composition then what is it called?

Accepted Answer

A)  Solute
B)  Compound
C)  Homogeneous mixture
D)  Heterogeneous mixture
E)  SolventF) A) and B)
G) A) and C)

Question 11

Which of these compounds is most likely to be covalent?

Accepted Answer

A)  Rb2S
B)  SrCl2
C)  CS2
D)  CaO
E)  MgI2F) B) and C)
G) All of the above

Question 12

Determine the charge on the unknown ion, A, in the compound A2S.

Accepted Answer

A)  +2
B)  +1
C)  -1
D)  -2E) A) and B)
F) B) and C)

Question 13

What is the chemical name of FeSO3.

Accepted Answer

A)  Iron(II)  sulfite
B)  Iron(III)  sulfate
C)  Iron sulfate
D)  Iron sulfur trioxide
E)  None of the above names is correct.F) A) and B)
G) C) and D)

Question 14

What is the name of ClO − ion?

Accepted Answer

A)  hypochlorite
B)  chlorate
C)  chlorite
D)  perchlorate
E)  perchloriteF) A) and C)
G) A) and B)

Question 15

Which of the following is a molecular formula for a compound with an empirical formula of CH?

Accepted Answer

A)  C2H6
B)  C3H9
C)  C4H10
D)  C6H6
E)  None of the answers is correct.F) B) and E)
G) C) and E)

Question 16

The formula for sodium sulfide is

Accepted Answer

A)  NaS
B)  K2S
C)  NaS2
D)  Na2S
E)  SeSF) None of the above
G) B) and E)

Question 17

Which of these compounds is most likely to be covalent?

Accepted Answer

A)  KF
B)  CaCl2
C)  SF4
D)  Al2O3
E)  CaSO4F) All of the above
G) C) and E)

Question 18

A scoop of vanilla ice cream is a pure substance.

Accepted Answer

A) True 
 B)False

Question 19

Diiodine pentaoxide is used as an oxidizing agent that converts carbon monoxide to carbon dioxide.What is its chemical formula?

Accepted Answer

A)  I2O5
B)  IO5
C)  2IO5
D)  I5O2
E)  (IO5) 2F) A) and E)
G) A) and D)

Question 20

Determine the charge on the unknown ion, A, in the compound ACl2.

Accepted Answer

A)  +2
B)  +1
C)  -1
D)  -2E) A) and B)
F) All of the above

Exam 3: Compounds and Chemical Bonds

What is the formula for lead(II) oxide?

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Which of these compounds is most likely to be covalent?

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Determine the charge on the unknown ion, A, in the compound ACl2.

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Which of the following is a molecular formula for a compound with an empirical formula of CH?

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Which of the following is the empirical formula for hexane, C6H14?

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What types of elements undergo ionic bonding?

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What is the name of ClO − ion?

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Which of the following elements exists as a diatomic molecule in the elemental state?

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Determine the charge on the unknown ion, A, in the compound AO.

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The rusting of a piece of iron under environmental conditions is a physical change.

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What is the chemical name of FeSO3.

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If a liquid contains 60% sugar and 40% water throughout its composition then what is it called?

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A scoop of vanilla ice cream is a pure substance.

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Which of the following is a covalent compound?

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The formula for sodium sulfide is

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Diiodine pentaoxide is used as an oxidizing agent that converts carbon monoxide to carbon dioxide.What is its chemical formula?

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Which of these pairs of elements would be most likely to form an ionic compound?

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Determine the charge on the unknown ion, A, in the compound A2S.

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Which of these compounds is most likely to be ionic?

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Which of these compounds is most likely to be covalent?

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Which of the following is the empirical formula for hexane, C₆H₁₄?

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What is the name of ClO ⁻ ion?

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What is the chemical name of FeSO₃.

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Determine the charge on the unknown ion, A, in the compound A₂S.

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