Question 1

What is the formula for the ionic compound formed by calcium ions and nitrate ions?

Accepted Answer

A)  Ca3N2
B)  Ca(NO3) 2
C)  Ca2NO3
D)  Ca2NO2
E)  CaNO3F) B) and E)
G) B) and D)

Question 2

Which one of the following statements about atoms and subatomic particles is correct?

Accepted Answer

A)  Rutherford discovered the atomic nucleus by bombarding gold foil with electrons.
B)  The proton and the neutron have identical masses.
C)  The neutron's mass is equal to that of a proton plus an electron.
D)  A neutral atom contains equal numbers of protons and electrons.
E)  An atomic nucleus contains equal numbers of protons and neutrons.F) B) and D)
G) C) and E)

Question 3

What is the formula of iodous acid?

Accepted Answer

A)  HI
B)  HIO3
C)  HIO
D)  HIO4
E)  HIO2F) B) and C)
G) B) and D)

Question 4

Which field of study made a big contribution toward understanding the composition of the atom?

Accepted Answer

A)  Electricity
B)  Radiation
C)  Solution chemistry
D)  Electrochemistry
E)  Quantum mechanicsF) C) and E)
G) C) and D)

Question 5

The formula for sodium sulfide is

Accepted Answer

A)  NaS.
B)  K2S.
C)  NaS2.
D)  Na2S.
E)  SeS.F) C) and D)
G) A) and B)

Question 6

_________________ is defined as a mass exactly equal to one-twelfth the mass of one carbon-12 atom.

Accepted Answer

One atomic...

Question 7

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 names is correct.F) C) and E)
G) B) and C)

Question 8

The scientist who determined the magnitude of the electric charge on the electron was

Accepted Answer

A)  John Dalton.
B)  Robert Millikan.
C)  J.J.Thomson.
D)  Henry Moseley.
E)  J.Burdge.F) C) and D)
G) B) and D)

Question 9

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

Accepted Answer

A)  Dalton
B)  Gay-Lussac
C)  Thomson
D)  Millikan
E)  RutherfordF) B) and C)
G) B) and E)

Question 10

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) A) and B)
G) C) and E)

Question 11

What is the name of ClO- ion?

Accepted Answer

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

Question 12

In the periodic table,atoms are arranged in order of

Accepted Answer

A)  increasing atomic mass.
B)  increasing atomic number.
C)  physical properties.
D)  periodicity.
E)  chemical reactivities.F) A) and E)
G) C) and D)

Question 13

What is the name given for the elements in Group 1A in the periodic table?

Accepted Answer

The answer of What is the name given for the...

Question 14

Who is credited with measuring the mass/charge ratio of the electron?

Accepted Answer

A)  Dalton
B)  Chadwick
C)  Thomson
D)  Millikan
E)  RutherfordF) B) and D)
G) B) and E)

Question 15

An anion is defined as

Accepted Answer

A)  a charged atom or group of atoms with a net negative charge.
B)  a stable atom.
C)  a group of stable atoms.
D)  an atom or group of atoms with a net positive charge.
E)  neutral.F) B) and C)
G) D) and E)

Question 16

Which of the following is a type of radioactive radiation that consists of positively charged particles and is deflected away from the positively charged plate?

Accepted Answer

A)  α rays
B)  β rays
C)  γ rays
D)  δ rays
E)  ε raysF) A) and E)
G) C) and E)

Question 17

Potassium permanganate is a strong oxidizer that reacts explosively with easily oxidized materials.What is its formula?

Accepted Answer

A)  KMnO3
B)  KMnO4
C)  K2MnO4
D)  K(MnO4) 2
E)  K2Mn2O7F) C) and D)
G) C) and E)

Question 18

Which of these materials are usually poor conductors of heat and electricity?

Accepted Answer

A)  Metals
B)  Metalloids
C)  Nonmetals
D)  Alkaline earth metals
E)  Alkali metalsF) All of the above
G) C) and D)

Question 19

Common examples of diatomic molecules from Group 7A elements include

Accepted Answer

A)  fluorine,hydrogen,and nitrogen.
B)  nitrogen,chlorine,and bromine.
C)  chlorine,bromine,and iodine.
D)  iodine,lead,and oxygen.E) C) and D)
F) None of the above

Question 20

What is the name of P4Se3?

Accepted Answer

A)  phosphorus selenide
B)  phosphorus triselenide
C)  tetraphosphorus selenide
D)  phosphoric selenide
E)  tetraphosphorus triselenideF) A) and B)
G) C) and E)

Exam 2: Atoms Molecules and Ions

What is the formula for the ionic compound formed by calcium ions and nitrate ions?

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Which of these materials are usually poor conductors of heat and electricity?

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Potassium permanganate is a strong oxidizer that reacts explosively with easily oxidized materials.What is its formula?

Correct AnswerverifiedShow Answer

In the periodic table,atoms are arranged in order of

Correct AnswerverifiedShow Answer

What is the name of P4Se3?

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Common examples of diatomic molecules from Group 7A elements include

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Which of the following is a type of radioactive radiation that consists of positively charged particles and is deflected away from the positively charged plate?

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Which field of study made a big contribution toward understanding the composition of the atom?

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_________________ is defined as a mass exactly equal to one-twelfth the mass of one carbon-12 atom.

Correct AnswerverifiedOne atomic...View AnswerShow Answer

What is the name of ClO- ion?

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What is the name given for the elements in Group 1A in the periodic table?

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What is the formula of iodous acid?

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An anion is defined as

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

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Which one of the following statements about atoms and subatomic particles is correct?

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The formula for sodium sulfide is

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What types of elements undergo ionic bonding?

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What is the chemical name of FeSO3?

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Who is credited with measuring the mass/charge ratio of the electron?

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The scientist who determined the magnitude of the electric charge on the electron was

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What is the name of P₄Se₃?

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One atomic...
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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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