Question 1

Cesium is an example of ________

Accepted Answer

A)  an alkali metal.
B)  a transition metal.
C)  an alkaline earth metal.
D)  a halogen.
E)  a chalcogen.F) A) and E)
G) A) and C)

Question 2

Elements 21-30 are known as ________

Accepted Answer

A)  alkaline earths.
B)  chalcogens.
C)  halides.
D)  transition metals.
E)  rare earths.F) A) and B)
G) A) and C)

Question 3

What is the correct name for CuCl2?

Accepted Answer

Question 4

Give an example of a molecular compound (a.k.a. a covalent compound).

Accepted Answer

Carbon dioxide, CO₂; answers will vary.

Question 5

According to the Big Bang theory, which statement about the origin of the elements is not correct?

Accepted Answer

A)  Initially, energy was transformed into electrons and other elementary particles.
B)  As the universe cooled, neutrons and protons were formed.
C)  Collisions of neutrons and protons produced deuterons, which then led to the formation of alpha particles.
D)  The nuclides of the elements were formed by nuclear reactions in the interior of stars.
E)  These nuclear reactions all require the addition of energy to form the elements.F) A) and B)
G) B) and D)

Question 6

What is the correct name for FeCl3?

Accepted Answer

A)  iron(III)  chloride
B)  iron trichloride
C)  ferrum trichloride
D)  ferric trichloride
E)  iron chlorideF) C) and D)
G) A) and D)

Question 7

What is the chemical formula for hydroselenic acid?

Accepted Answer

The answer of What is the chemical formula for hydroselenic...

Question 8

Identify the letter that corresponds to each of the following groups of the periodic table:
a) chalcogens b) noble gases c) alkaline earth metals d) halogens

Accepted Answer

The answer of Identify the letter that corresponds to each...

Question 9

Dalton's law of multiple proportions deals with ________

Accepted Answer

A)  the proportions of reacting chemicals that maximize the reaction rate.
B)  the total number of different compounds that can be made from two elements.
C)  the volumes of two elements that can combine to form two or more compounds.
D)  the relative masses of two elements that can combine to form two or more compounds.
E)  reactions that involve multiple steps.F) A) and B)
G) B) and D)

Question 10

Manganese(IV)  oxide is a brown insoluble solid often found as a product of reactions of potassium permanganate. What is the formula of manganese(IV)  oxide?

Accepted Answer

A)  Mn4O
B)  MnO4
C)  MnO
D)  MnO2
E)  Mn2O2F) All of the above
G) B) and E)

Question 11

Heavy elements in the universe are formed by ________

Accepted Answer

A)  fission reactions of hydrogen nuclei.
B)  quark formation.
C)  supernova explosions.
D)  star collapse into black holes.
E)  fusion reactions of iron nuclei.F) C) and D)
G) B) and D)

Question 12

A cation has a ________ charge, and an anion has a ________ charge.

Accepted Answer

positive ; negative

Question 13

Give an example of a nonmetal.

Accepted Answer

Sulfur; an...

Question 14

Potassium is best described as a ________

Accepted Answer

A)  metalloid.
B)  metal.
C)  transition metal.
D)  noble gas.
E)  nonmetal.F) C) and D)
G) B) and D) B

Question 15

Titanium forms different ionic oxides. One, TiO2, is a white oxide used in paints. What is the proper name for TiO2?

Accepted Answer

A)  titanium oxide
B)  titanium(IV)  oxide
C)  titanium(II)  oxide
D)  titanium oxide(II) 
E)  titanium dioxideF) B) and E)
G) D) and E)

Question 16

What is the chemical formula for manganese(IV) oxide?

Accepted Answer

The answer of What is the chemical formula for manganese(IV)...

Question 17

Which of the following is most likely to exhibit covalent bonding?

Accepted Answer

A)  NaF
B)  CaCl2
C)  Cs2O
D)  CO2
E)  NaClF) A) and E)
G) All of the above

Question 18

The 4He nucleus is an example of ________

Accepted Answer

A)  a nuclide.
B)  a muon.
C)  a proton.
D)  a neutron.
E)  a nucleon.F) D) and E)
G) B) and C)

Question 19

Based on the element's position in the periodic table, which statement below is not correct?

Accepted Answer

A)  The charge on an ion of sodium is 1+.
B)  The charge on an ion of magnesium is 2+.
C)  The charge on an ion of oxygen is 2-.
D)  The charge on an ion of chlorine is 1-.
E)  Ca2+ has more electrons than Ar.F) C) and D)
G) A) and E)

Question 20

Which particle-level diagram is the best representation of a  ion?

Accepted Answer

A)   
B)   
C)   
D)   E) A) and B)
F) None of the above

Exam 2: Atoms, Ions, and Molecules: Matter Starts Here

Cesium is an example of ________

Correct AnswerverifiedShow Answer

Elements 21-30 are known as ________

Correct AnswerverifiedShow Answer

What is the correct name for CuCl2?

Correct AnswerverifiedShow Answer

Give an example of a molecular compound (a.k.a. a covalent compound).

Correct AnswerverifiedCarbon dioxide, CO2; answers will vary.

According to the Big Bang theory, which statement about the origin of the elements is not correct?

Correct AnswerverifiedShow Answer

What is the correct name for FeCl3?

Correct AnswerverifiedShow Answer

What is the chemical formula for hydroselenic acid?

Correct AnswerverifiedShow Answer

Identify the letter that corresponds to each of the following groups of the periodic table: a) chalcogens b) noble gases c) alkaline earth metals d) halogens

Correct AnswerverifiedShow Answer

Dalton's law of multiple proportions deals with ________

Correct AnswerverifiedShow Answer

Manganese(IV) oxide is a brown insoluble solid often found as a product of reactions of potassium permanganate. What is the formula of manganese(IV) oxide?

Correct AnswerverifiedShow Answer

Heavy elements in the universe are formed by ________

Correct AnswerverifiedShow Answer

A cation has a ________ charge, and an anion has a ________ charge.

Correct Answerverifiedpositive ; negative

Give an example of a nonmetal.

Correct AnswerverifiedSulfur; an...View AnswerShow Answer

Potassium is best described as a ________

Correct AnswerverifiedB

Titanium forms different ionic oxides. One, TiO2, is a white oxide used in paints. What is the proper name for TiO2?

Correct AnswerverifiedShow Answer

What is the chemical formula for manganese(IV) oxide?

Correct AnswerverifiedShow Answer

Which of the following is most likely to exhibit covalent bonding?

Correct AnswerverifiedShow Answer

The 4He nucleus is an example of ________

Correct AnswerverifiedShow Answer

Based on the element's position in the periodic table, which statement below is not correct?

Correct AnswerverifiedShow Answer

Which particle-level diagram is the best representation of a ion?

Correct AnswerverifiedShow Answer

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What is the correct name for CuCl₂?

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Carbon dioxide, CO₂; answers will vary.

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What is the correct name for FeCl₃?

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A cation has a charge, and an anion has a charge.

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positive ; negative

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Sulfur; an...
View Answer

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B

Titanium forms different ionic oxides. One, TiO₂, is a white oxide used in paints. What is the proper name for TiO₂?

Correct Answer
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The ⁴He nucleus is an example of ________

Correct Answer
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