Question 1

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

Accepted Answer

A)   Dalton
B)   Gay-Lussac
C)   Thomson
D)   Millikan
E)   Rutherford

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

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 cyanide

Question 4

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- bicarbonate

Question 5

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 6

What is the formula for lead (II)  oxide?

Accepted Answer

A)   PbO
B)   PbO2
C)   Pb2O
D)   PbO4
E)   Pb2O3

Question 7

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 pentasulfide

Question 8

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 amu

Question 9

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

Accepted Answer

A)   S2N4
B)   S4N2
C)   4SN2
D)   S4N
E)   S2N

Question 10

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) 2

Question 11

Lead (Pb) is a main-group element.

Accepted Answer

A) True 
 B)False

Question 12

The formula C9H20 is an empirical formula.

Accepted Answer

A) True 
 B)False

Question 13

A column of the periodic table is called a

Accepted Answer

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

Question 14

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)   helium

Question 15

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) 2

Question 16

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

Accepted Answer

A)   Ag2Cl3
B)   Ag2Cl
C)   AgCl3
D)   AgCl2
E)   AgCl

Question 17

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, Ar

Question 18

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, positive

Question 19

A row of the periodic table is called a

Accepted Answer

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

Question 20

Which of the following symbols does not represent an element?

Accepted Answer

A)   O2
B)   Co
C)   HF
D)   Cs
E)   Xe

Exam 2: The Components of Matter

The formula C9H20 is an empirical formula.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following symbols does not represent an element?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Lead (Pb) is a main-group element.

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

A row of the periodic table is called a

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A column of the periodic table is called a

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 combinations of names and formulas of ions is incorrect?

Correct AnswerverifiedShow Answer

What is the formula for lead (II) oxide?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

The formula C₉H₂₀ is an empirical formula.

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

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

Correct Answer
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a. alkali metals
b. ...
View Answer