Question 1

The name for HF(g)  is

Accepted Answer

A)   hydrofluoric acid.
B)   hydrogen(I)  fluoride.
C)   hydrogen fluoride.
D)   hydrogen fluorine.
E)   fluoric acid.F) C) and E)
G) B) and D)

Question 2

J. J. Thomson studied cathode ray particles (electrons)  and was able to measure the mass/charge ratio. His results showed that

Accepted Answer

A)   the mass/charge ratio varied with as the cathode material was changed.
B)   the charge was always a whole-number multiple of some minimum charge.
C)   matter included particles much smaller than the atom.
D)   atoms contained dense areas of positive charge.
E)   atoms are largely empty space.F) None of the above
G) C) and E)

Question 3

A row of the periodic table is called a

Accepted Answer

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

Question 4

A red glaze on porcelain can be produced by using MnSO4. What is its name?

Accepted Answer

A)   manganese disulfate
B)   manganese(II)  sulfate
C)   manganese(IV)  sulfate
D)   manganese sulfate
E)   manganese(I)  sulfateF) A) and D)
G) C) and D)

Question 5

Which of the following ions occurs commonly?

Accepted Answer

A)   N3+
B)   S6+
C)   O2-
D)   Ca+
E)   Cl+F) C) and D)
G) A) and B)

Question 6

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 sulfide.F) All of the above
G) D) and E) D

Question 7

Barium sulfate is used in manufacturing photographic paper. What is its formula?

Accepted Answer

A)   BaSO4
B)   Ba(SO4) 2
C)   Ba2SO4
D)   Ba2(SO4) 3
E)   BaSO3F) A) and B)
G) B) and E)

Question 8

What is the name of Na2O?

Accepted Answer

A)   disodium monoxide
B)   sodium monoxide
C)   sodium dioxide
D)   sodium(I)  oxide
E)   sodium oxideF) B) and E)
G) A) and C)

Question 9

A) Give the names of the following ions: (i) NH4+ and (ii) SO32-
b. Write down the formulas of the following ions: (i) aluminum and (ii) carbonate

Accepted Answer

a. (i) ammonium and ...

Question 10

Which of the following compounds is covalent?

Accepted Answer

A)   CaCl2
B)   MgO
C)   Al2O3
D)   Cs2S
E)   PCl3F) B) and E)
G) B) and D)

Question 11

Bromine has two naturally-occurring isotopes. 79Br has a mass of 78.9 amu and accounts for 50.3% of bromine atoms. If the atomic mass of bromine is 79.9 amu, what is the mass of an atom of the second bromine isotope?

Accepted Answer

A)   77.9 amu
B)   80.0 amu
C)   80.1 amu
D)   80.9 amu
E)   88.9 amuF) A) and B)
G) A) and C)

Question 12

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) None of the above
G) C) and D)

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

Which one of the following is a polyatomic cation?

Accepted Answer

A)   nitrate
B)   chromate
C)   permanganate
D)   hydronium
E)   potassiumF) C) and D)
G) B) and D) D

Question 15

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) All of the above
G) A) and B) A

Question 16

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

Accepted Answer

A)   Ag2Cl3
B)   Ag2Cl
C)   AgCl3
D)   AgCl2
E)   AgClF) None of the above
G) A) and D)

Question 17

Fill in the blank spaces and write out all the symbols in the left hand column in full, in the form  (i.e., include the appropriate values of Z and A as well as the correct symbol X).

Accepted Answer

The answer of Fill in the blank spaces and write...

Question 18

Sodium oxide combines violently with water. Which of the following gives the formula and the bonding for sodium oxide?

Accepted Answer

A)   NaO, ionic compound
B)   NaO, covalent compound
C)   Na2O, ionic compound
D)   Na2O, covalent compound
E)   Na2O2, ionic compoundF) A) and B)
G) None of the above

Question 19

Which of the following is a metal?

Accepted Answer

A)   nitrogen, N, Z = 7
B)   phosphorus, P, Z = 15
C)   arsenic, Z = 33
D)   thallium, Tl, Z = 81
E)   silicon, Si, Z = 14F) B) and D)
G) All of the above

Question 20

Which of the following is a non-metal?

Accepted Answer

A)   lithium, Li, Z = 3
B)   bromine, Br, Z = 35
C)   mercury, Hg, Z = 80
D)   bismuth, Bi, Z = 83
E)   sodium, Na, Z = 11F) A) and C)
G) A) and E)

Exam 2: The Components of Matter

The name for HF(g) is

Correct AnswerverifiedShow Answer

J. J. Thomson studied cathode ray particles (electrons) and was able to measure the mass/charge ratio. His results showed that

Correct AnswerverifiedShow Answer

A row of the periodic table is called a

Correct AnswerverifiedShow Answer

A red glaze on porcelain can be produced by using MnSO4. What is its name?

Correct AnswerverifiedShow Answer

Which of the following ions occurs commonly?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedD

Barium sulfate is used in manufacturing photographic paper. What is its formula?

Correct AnswerverifiedShow Answer

What is the name of Na2O?

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A) Give the names of the following ions: (i) NH4+ and (ii) SO32- b. Write down the formulas of the following ions: (i) aluminum and (ii) carbonate

Correct Answerverifieda. (i) ammonium and ...View AnswerShow Answer

Which of the following compounds is covalent?

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Bromine has two naturally-occurring isotopes. 79Br has a mass of 78.9 amu and accounts for 50.3% of bromine atoms. If the atomic mass of bromine is 79.9 amu, what is the mass of an atom of the second bromine isotope?

Correct AnswerverifiedShow Answer

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

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

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Which one of the following is a polyatomic cation?

Correct AnswerverifiedD

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

Correct AnswerverifiedA

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

Correct AnswerverifiedShow Answer

Fill in the blank spaces and write out all the symbols in the left hand column in full, in the form (i.e., include the appropriate values of Z and A as well as the correct symbol X).

Correct AnswerverifiedShow Answer

Sodium oxide combines violently with water. Which of the following gives the formula and the bonding for sodium oxide?

Correct AnswerverifiedShow Answer

Which of the following is a metal?

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Which of the following is a non-metal?

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

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D

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What is the name of Na₂O?

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A) Give the names of the following ions: (i) NH₄⁺ and (ii) SO₃^2-b. Write down the formulas of the following ions: (i) aluminum and (ii) carbonate

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a. (i) ammonium and ...
View Answer

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Bromine has two naturally-occurring isotopes. ⁷⁹Br has a mass of 78.9 amu and accounts for 50.3% of bromine atoms. If the atomic mass of bromine is 79.9 amu, what is the mass of an atom of the second bromine isotope?

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D

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A

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