Question 1

What is the formula for lead (II)  oxide?

Accepted Answer

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

Question 2

An isotope of which of the following elements is chosen as a standard in measuring atomic mass?

Accepted Answer

A)   carbon
B)   oxygen
C)   hydrogen
D)   neon
E)   heliumF) C) and D)
G) B) and D)

Question 3

Iodine pentafluoride reacts slowly with glass and violently with water. Determine its molecular mass.

Accepted Answer

A)   653.52 amu
B)   259.89 amu
C)   221.90 amu
D)   202.90 amu
E)   145.90 amuF) C) and D)
G) B) and D)

Question 4

After an atom has lost an electron it becomes a/an ______ and has a _______ charge.

Accepted Answer

A)   anion, positive
B)   isotope, negative
C)   anion, negative
D)   cation, positive
E)   nucleus, positiveF) B) and C)
G) A) and E)

Question 5

A column of the periodic table is called a

Accepted Answer

A)   group.
B)   period.
C)   isotopic mixture.
D)   pillar.
E)   shell.F) B) and E)
G) B) and D)

Question 6

Which one of the following formulas of ionic compounds is the least likely to be correct?

Accepted Answer

A)   NH4Cl
B)   Ba(OH) 2
C)   Na2SO4
D)   Ca2NO3
E)   Cu(CN) 2F) A) and D)
G) A) and C)

Question 7

When an alkali metal combines with a non-metal, a covalent bond is normally formed.

Accepted Answer

A) True 
 B)False

Question 8

What is the name of the acid formed when HCN gas is dissolved in water?

Accepted Answer

A)   cyanic acid
B)   hydrocyanic acid
C)   cyanous acid
D)   hydrocyanous acid
E)   hydrogen cyanideF) C) and D)
G) B) and E)

Question 9

Which of the following symbols does not represent an element?

Accepted Answer

A)   O2
B)   Co
C)   HF
D)   Cs
E)   XeF) A) and E)
G) A) and C)

Question 10

Silver chloride is used in photographic emulsions. What is its formula?

Accepted Answer

A)   Ag2Cl3
B)   Ag2Cl
C)   AgCl3
D)   AgCl2
E)   AgClF) B) and D)
G) D) and E)

Question 11

Tetrasulfur dinitride decomposes explosively when heated. What is its formula?

Accepted Answer

A)   S2N4
B)   S4N2
C)   4SN2
D)   S4N
E)   S2NF) D) and E)
G) B) and C)

Question 12

The formula C9H20 is an empirical formula.

Accepted Answer

A) True 
 B)False

Question 13

Give the common name of the group in the periodic table to which each of the following elements belongs:
a. Rb
b. Br
c. Ba
d. Ar

Accepted Answer

a. alkali metals
b. ...

Question 14

Which one of the following combinations of names and formulas of ions is incorrect?

Accepted Answer

A)   Ba2+ barium
B)   S2- sulfate
C)   CN- cyanide
D)   ClO4- perchlorate
E)   HCO3- bicarbonateF) A) and C)
G) A) and B)

Question 15

Which one of the following groups does not contain any metals?

Accepted Answer

A)   C, S, As, H
B)   Cu, P, Se, Kr
C)   N, Ne, Nd, Np
D)   Xe, Hg, Ge, O
E)   Cl, Al, Si, ArF) None of the above
G) A) and B)

Question 16

The compound, P4S10, is used in the manufacture of safety matches. What is its name?

Accepted Answer

A)   phosphorus sulfide
B)   phosphoric sulfide
C)   phosphorus decasulfide
D)   tetraphosphorus decasulfide
E)   phosphorus pentasulfideF) A) and E)
G) B) and C)

Question 17

Lead (Pb) is a main-group element.

Accepted Answer

A) True 
 B)False

Question 18

Which one of the following formulas of ionic compounds is the least likely to be correct?

Accepted Answer

A)   CaCl2
B)   NaSO4
C)   MgCO3
D)   KF
E)   Cu(NO3) 2F) D) and E)
G) C) and D)

Question 19

Who is credited with first measuring the charge of the electron?

Accepted Answer

A)   Dalton
B)   Gay-Lussac
C)   Thomson
D)   Millikan
E)   RutherfordF) None of the above
G) B) and C)

Question 20

A row of the periodic table is called a

Accepted Answer

A)   group.
B)   period.
C)   isotopic mixture.
D)   family.
E)   subshell.F) C) and D)
G) A) and D)

Exam 2: The Components of Matter

Which one of the following formulas of ionic compounds is the least likely to be correct?

Correct AnswerverifiedShow Answer

Silver chloride is used in photographic emulsions. What is its formula?

Correct AnswerverifiedShow Answer

When an alkali metal combines with a non-metal, a covalent bond is normally formed.

Correct AnswerverifiedShow Answer

Iodine pentafluoride reacts slowly with glass and violently with water. Determine its molecular mass.

Correct AnswerverifiedShow Answer

What is the formula for lead (II) oxide?

Correct AnswerverifiedShow Answer

A column of the periodic table is called a

Correct AnswerverifiedShow Answer

After an atom has lost an electron it becomes a/an ______ and has a _______ charge.

Correct AnswerverifiedShow Answer

What is the name of the acid formed when HCN gas is dissolved in water?

Correct AnswerverifiedShow Answer

Which one of the following formulas of ionic compounds is the least likely to be correct?

Correct AnswerverifiedShow Answer

Tetrasulfur dinitride decomposes explosively when heated. What is its formula?

Correct AnswerverifiedShow Answer

Which one of the following groups does not contain any metals?

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Which one of the following combinations of names and formulas of ions is incorrect?

Correct AnswerverifiedShow Answer

An isotope of which of the following elements is chosen as a standard in measuring atomic mass?

Correct AnswerverifiedShow Answer

The formula C9H20 is an empirical formula.

Correct AnswerverifiedShow Answer

Lead (Pb) is a main-group element.

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Who is credited with first measuring the charge of the electron?

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Give the common name of the group in the periodic table to which each of the following elements belongs: a. Rb b. Br c. Ba d. Ar

Correct Answerverifieda. alkali metalsb. ...View AnswerShow Answer

Which of the following symbols does not represent an element?

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A row of the periodic table is called a

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The compound, P4S10, is used in the manufacture of safety matches. What is its name?

Correct AnswerverifiedShow Answer

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After an atom has lost an electron it becomes a/an and has a _ charge.

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The formula C₉H₂₀ is an empirical formula.

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a. alkali metals
b. ...
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The compound, P₄S₁₀, is used in the manufacture of safety matches. What is its name?

Correct Answer
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