Deck 3: Molecules,compounds,and Nomenclature

Question 1

What is the empirical formula for Hg₂(NO₃)₂?

A)Hg₂(NO₃)₂
B)HgNO₃
C)Hg(NO₃)₂
D)Hg₂NO₃
E)Hg₄(NO₃)₄

Answer 1

HgNO₃

Question 2

Identify a possible molecular formula for a compound with an empirical formula C₃H₅ClO.

A)C₆H₁₀ClO₂
B)C₅H₁₀Cl₂O₂
C)C₆H₁₀Cl₂O₂
D)C₆H₁₀O₂
E)C₆H₁₂Cl₂O₂

Answer 2

C₆H₁₀Cl₂O₂

Question 3

Which of the following is a molecular element?

A)Mg
B)Ar
C)Xe
D)I
E)Li

Answer 3

I

Question 4

Which of the following contains both ionic and covalent bonds?

A)CaI₂
B)CO₂
C)CaSO₄
D)SF₆
E)C₂H₄

Question 5

Which of the following is an atomic element?

A)Br
B)H
C)N
D)O
E)Mg

Question 6

A covalent bond is best described as

A)the sharing of electrons between atoms.
B)the transfer of electrons.
C)a bond between a metal and a nonmetal.
D)a bond between a metal and a polyatomic ion.
E)a bond between two polyatomic ions.

Question 7

Which of the following contains both ionic and covalent bonds?

A)KI
B)NH₄Cl
C)CaS
D)H₂S
E)Si

Question 8

Identify the compound with (an)ionic bond(s).

A)C
B)

C)CH₄
D)LiBr
E)

Question 9

Which of the following is a molecular element?

A)Kr
B)Ag
C)S
D)Mg
E)Ti

Question 10

Which of the following is an ionic compound?

A)LiCl
B)NO₂
C)PCl₃
D)CF₄
E)SeBr₂

Question 11

An ionic bond is best described as

A)the sharing of electrons.
B)the transfer of electrons from one atom to another.
C)the attraction that holds the atoms together in a polyatomic ion.
D)the attraction between two nonmetal atoms.
E)the attraction between two metal atoms.

Question 12

Identify the compound with (a)covalent bond(s).

A)CH₄
B)CaCl₂
C)KBr
D)MgCl₂
E)NaCl

Question 13

Which of the following is a molecular compound?

A)CuCl₂
B)KCl
C)NaNO₃
D)CH₃Cl
E)RbBr

Question 14

When forming ionic compounds,cations and anions form three-dimensional networks known as

A)a molecular compound.
B)a space-filling compound.
C)a lattice.
D)an empirical formula.

Question 15

Which of the following is an ionic compound?

A)SCl₂
B)Mg₃(PO₄)₂
C)Cl₂O
D)CH₂O
E)PF₅

Question 16

Identify the compound with (an)ionic bond(s).

A)SO₂
B)CO
C)O₂
D)H₂O
E)KBr

Question 17

Which of the following exists as a polyatomic molecule?

A)He
B)C
C)P
D)Na
E)Ne

Question 18

Which of the following is a molecular compound?

A)NaCN
B)LiOH
C)SrI₂
D)ZnS
E)P₄O₁₀

Question 19

Which of the following exists as a diatomic molecule?

A)N
B)C
C)P
D)Na
E)Ne

Question 20

Which of the following is a possible molecular formula for a compound with an empirical formula C₄H₄O?

A)C₈H₈O₂
B)C₁₂H₁₂O₂
C)C₂H₂O
D)C₈H₈O

Question 21

Which of the following is an acid in aqueous solution?

A)NH₃
B)NaF
C)Ca(C₂H₃O₂)₂
D)HI
E)KCl

Question 22

Identify the charge,X,on the acetate ion $\mathrm { C } _ { 2 }$ $\mathrm { H } _ { 3 }$ $\mathrm { O } _ { 2 } ^ { \mathrm { X } }$ .

A)+1
B)+2
C)+3
D)-2
E)-1

Question 23

Identify the formula for strontium nitride.

A)Sr₃N₂
B)Sr(NO₃)₂
C)SrN
D)Sr₂N₃
E)Sr(NO₂₎₂

Question 24

Identify the charge,X,on the phosphide ion P^X.

A)-4
B)-3
C)-2
D)-1
E)+1

Question 25

Identify the name for LiNO₃∙3H₂O.

A)lithium nitrate
B)lithium nitrate hemihydrate
C)lithium nitrate monohydrate
D)lithium nitrate dihydrate
E)lithium nitrate trihydrate

Question 26

Which of the following is a molecular compound?

A)CuCl₂
B)N₂O₄
C)NaNO₃
D)SrSO₃
E)RbBr

Question 27

Determine the name for TiCO₃.Remember that titanium forms several ions.

A)titanium(II)carbonate
B)titanium carbide
C)titanium carbonite
D)titanium(II)carbonite
E)titanium(I)carbonate

Question 28

Identify the sulfite ion.

A) $\mathrm { SO } _ { 3 } ^ { 2 - }$
B) $\mathrm { HSO } _ { 3 } ^ { - }$
C) $s ^ { 2 - }$
D) $\mathrm { SO } _ { 4 } ^ { 2 - }$
E) $\mathrm { HSO } _ { 4 } ^ { - }$

Question 29

Identify the formula for magnesium nitrate hexahydrate.

A)Mg(NO₃)₂∙5H₂O
B)Mg(NO₃)₂∙6H₂O
C)Mg(NO₃)₂∙7H₂O
D)MgNO₃∙5H₂O
E)MgNO₃∙6H₂O

Question 30

Identify the cyanide ion.

A) $\mathrm { MnO } _ { 4 }^-$
B)H $\mathrm{CO}_{3}^{-}$
C) $\mathrm { CO } _ { 3 } ^ { 2 - }$
D)HCN
E) $\mathrm { CN } ^ { - }$

Question 31

Identify the perchlorate ion.

A) $\mathrm { ClO } _ { 2 } ^ { - }$
B) $\mathrm { ClO } _ { 3 } ^ { - }$
C) $\mathrm { ClO } _ { 4 } ^ { - }$
D) $\mathrm { ClO } ^ { - }$
E) $\mathrm { Cl } ^ { - }$

Question 32

Identify the formula for sodium chlorate.

A)NaClO
B)NaClO₂
C)NaClO₃
D)NaClO₄

Question 33

Which of the following is an acid in aqueous solution?

A)CaCO₃
B)HClO₂
C)CH₃OCH₃
D)NaCl
E)KNO₃

Question 34

Identify the nitrite ion.

A) $\mathrm { NO } _ { 3 } ^ { - }$
B) $\mathrm { NO } _ { 2 } ^ { - }$
C) $\mathrm { NH } _ { 4 } ^ { + }$
D) $\mathrm { N } _ { 3 } ^ { - }$
E) $\text { N3- }$

Question 35

What is the empirical formula for C₄H₁₀O₂?

A)C₂H₅O
B)CHO
C)C₂H₄O
D)CHO₂
E)CH₂O

Question 36

Identify the formula for the compound formed between potassium and sulfur.

A)KS
B)KS₂
C)K₂S
D)K₂SO₃
E)K₃S₂

Question 37

Identify the charge,X,on the barium ion $\mathrm { Ba } ^ { \mathrm { X } }$ .

A)+1
B)+2
C)+3
D)-1
E)-2

Question 38

Identify the name for SnO.

A)tin(I)oxide
B)tin(II)oxide
C)tin(III)oxide
D)tin(IV)oxide

Question 39

Identify the formula for barium hydroxide octahydrate.

A)Ba(OH)₂∙8H₂O
B)BaOH∙8H₂O
C)B(OH)₃∙8H₂O
D)8Ba(OH)₂∙H₂O
E)8BaOH∙H₂O

Question 40

Identify the formula for barium nitrite.

A)Ba₃N₂
B)BaNO₃
C)BN
D)Ba(NO₂)₂
E)B(NO₂)₃

Question 41

Determine the name for H₂CO₃.

A)carbonous acid
B)dihydrogen carbonate
C)carbonic acid
D)hydrocarbonic acid
E)hydrocarbide acid

Question 42

Determine the name for CoCl₂∙6H₂O.Remember that Co forms several ions.

A)cobalt chloride hydrate
B)cobalt(I)chloride heptahydrate
C)cobalt(II)chloride heptahydrate
D)cobalt(II)chloride hexahydrate
E)cobalt(I)chloride

Question 43

Identify the name for aqueous H₂SO₄.

A)sulfuric acid
B)persulfurous acid
C)sulfurous acid
D)hyposulfurous acid
E)persulfuric acid

Question 44

Determine the name for Cl₂O.

A)chlorine oxide
B)dichlorine monoxide
C)chlorine(I)oxide
D)chlorine(II)oxide
E)chlorate

Question 45

Identify the name for FeS.

A)iron(I)sulfate
B)iron(I)sulfide
C)iron(II)sulfide
D)iron(II)sulfate
E)iron sulfide

Question 46

Identify the name for Sr(NO₃)₂∙4H₂O.

A)tin(II)nitrate tetrahydrate
B)strontium nitrate tetrahydrate
C)scandium nitrate tetrahydrate
D)tin(III)nitrate tetrahydrate
E)tin(II)nitrate quadhydrate

Question 47

Determine the name for aqueous HBr.

A)bromic acid
B)bromous acid
C)hydrobromous acid
D)hydrogen bromate
E)hydrobromic acid

Question 48

Identify the name for Sn(SO₄)₂.Remember that Sn forms several ions.

A)tin(I)sulfite
B)tin(IV)sulfate
C)tin sulfide
D)tin(II)sulfite
E)tin(I)sulfate

Question 49

What is the charge on an aluminum ion?

A)+3
B)+2
C)+1
D)-1
E)-2

Question 50

What is the correct formula for lead (II)chloride?

A)LdCl₄
B)SbCl₄
C)PbCl₂
D)PbCl₄
E)LaCl₃

Question 51

Determine the name for N₂O₅.

A)dinitrogen pentoxide
B)nitrogen oxide
C)nitrogen(IV)oxide
D)nitrogen(II)oxide
E)nitrogen tetroxide

Question 52

Identify the correct formula for sodium chlorate.

A)NaClO
B)NaClO₂
C)NaClO₃
D)NaClO₄

Question 53

Identify the correct formula for aluminum sulfate.

A)Al₂SO₄
B)Al(SO₄)₃
C)Al₃(SO₄)₂
D)Al₂(SO₄)₃

Question 54

Determine the name for aqueous HClO₃.

A)hydrochloric acid
B)hydrochlorous acid
C)chlorate acid
D)chloric acid
E)perchloric acid

Question 55

Determine the name for P₄O₁₀.

A)phosphorus(IV)oxide
B)diphosphorus pentoxide
C)phosphorus oxide
D)phosphorus(II)oxide
E)tetraphosphorus decoxide

Question 56

Identify the name for Ca₃(PO₄)₂.

A)calcium(III)phosphite
B)calcium(II)phosphite
C)calcium phosphate
D)tricalcium phosphorustetraoxide
E)calcium phosphite

Question 57

Identify the name for PBr₃.

A)phosphorus tribromide
B)potassium tribromide
C)phosphorus(III)bromide
D)phosphorus(II)bromide
E)phosphorus bromide

Question 58

Identify the formula for copper (II)sulfate pentahydrate.

A)Cu₂SO₃^∙H₅
B)Cu₂S^∙H₂O
C)CuS^∙5H₂O
D)(CuSO₄)₅
E)CuSO₄^∙5H₂O

Question 59

Identify the formula for sulfurous acid.

A)H₂SO₃
B)HSO₃
C)H₂SO₄
D)HSO₄

Question 60

Identify the formula for chromium(II)nitrate.

A)Cr(NO₂)₃
B)Cr(NO₃)₃
C)Cr(NO₃)₂
D)Cr(NO₂)₂
E)Cr₂NO₂

Question 61

Which of the following is a formula for the compound disulfur tetrafluoride?

A)SF₄
B)2SF₄
C)S₂F₄
D)SF₆
E)S₂F₂

Question 62

Calculate the molar mass of H₂CO₃.

A)62.03 g mol^-1
B)29.02 g mol^-1
C)61.02 g mol^-1
D)60.01 g mol^-1
E)74.04 g mol^-1

Question 63

Which of the following is a formula for the compound iridium(III)bromide tetrahydrate?

A)IrBr∙ H₂O
B)IrBr∙4H₂O
C)IrBr₃∙4H₂O
D)IBr₃∙4H₂O
E)IBr₃∙2H₂O

Question 64

Identify the name for the compound Fe(C₂H₃O₂)₂.

A)iron(II)hydrogen carbonate
B)iron(III)carbonate
C)iron acetate
D)iron(II)acetate
E)iron(II)dihydrogen phosphate

Question 65

Calculate the molar mass for Mg(ClO₄)₂.

A)223.21 g mol^-1
B)123.76 g mol^-1
C)119.52 g mol^-1
D)247.52 g mol^-1
E)75.76 g mol^-1

Question 66

Identify an amine.

A)CH₃CH₂OCH₂CH₃
B)CH₃CH₂OH
C)CH₃CH₂NH₂
D)CH₃CH₂CH₂CH₃
E)CH₃COOH

Question 67

How many molecules of N₂O₄ are in 76.3 g N₂O₄? The molar mass of N₂O₄ is 92.02 g mol^-1.

A)5.54 × 10²⁵ N₂O₄ molecules
B)7.26 × 10²³ N₂O₄ molecules
C)1.38 × 10²⁴ N₂O₄ molecules
D)4.59 × 10²⁵ N₂O₄ molecules
E)4.99 × 10²³ N₂O₄ molecules

Question 68

Identify an ether.

A)CH₃CH₂OCH₂CH₃
B)CH₃CH₂OH
C)CH₃CH₂NH₂
D)CH₃CH₂CH₂CH₃
E)CH₃COOH

Question 69

How many C₂H₄ molecules are contained in 45.8 mg of C₂H₄? The molar mass of C₂H₄ is 28.05 g mol^-1.

A)9.83 × 10²⁰ C₂H₄ molecules
B)7.74 × 10²⁶ C₂H₄ molecules
C)2.71 × 10²⁰ C₂H₄ molecules
D)3.69 × 10²³ C₂H₄ molecules
E)4.69 × 10²³ C₂H₄ molecules

Question 70

Calculate the molar mass of Al(C₂H₃O₂)₃.

A)86.03 g mol^-1
B)204.13 g mol^-1
C)56.00 g mol^-1
D)258.09 g mol^-1
E)139.99 g mol^-1

Question 71

Identify a hydrocarbon.

A)CH₃CH₂OCH₂CH₃
B)CH₃CH₂OH
C)CH₃CH₂NH₂
D)CH₃CH₂CH₂CH₃
E)CH₃COOH

Question 72

How many millimoles of Ca(NO₃)₂ contain 4.78 × 10²² formula units of Ca(NO₃)₂? The molar mass of Ca(NO₃)₂ is 164.10 g mol^-1.

A)12.6 mmol Ca(NO₃)₂
B)13.0 mmol Ca(NO₃)₂
C)20.7 mmol Ca(NO₃)₂
D)79.4 mmol Ca(NO₃)₂
E)57.0 mmol Ca(NO₃)₂

Question 73

Identify a carboxylic acid.

A)CH₃CH₂OCH₂CH₃
B)CH₃CH₂OH
C)CH₃CH₂NH₂
D)CH₃CH₂CH₂CH₃
E)CH₃COOH

Question 74

What is the mass (in kg)of 6.89 × 10²⁵ molecules of CO₂? The molar mass of CO₂ is 44.01 g mol^-1.

A)3.85 kg
B)5.04 kg
C)2.60 kg
D)3.03 kg
E)6.39 kg

Question 75

What is the mass of 9.44 × 10²⁴ molecules of NO₂? The molar mass of NO₂ is 46.01 g mol^-1.

A)205 g
B)294 g
C)721 g
D)341 g
E)685 g

Question 76

How many moles of C₃H₈ contain 9.25 × 10²⁴ molecules of C₃H₈?

A)65.1 moles C₃H₈
B)28.6 moles C₃H₈
C)34.9 moles C₃H₈
D)46.2 moles C₃H₈
E)15.4 moles C₃H₈

Question 77

How many moles of N₂O₄ are in 76.3 g N₂O₄? The molar mass of N₂O₄ is 92.02 g mol^-1.

A)7.02 × 10³ moles N₂O₄
B)1.42 × 10^-4 moles N₂O₄
C)1.00 mole N₂O₄
D)1.21 moles N₂O₄
E)0.829 moles N₂O₄

Question 78

Which of the following compounds is ethanol?

A)C₂H₆
B)C₂H₅OH
C)CH₃CO₂H
D)CH₃CO₂CH₃
E)CH₃-O-CH₃

Question 79

Calculate the molar mass of Ca₃(PO₄)₂.

A)87.05 g mol^-1
B)215.21 g mol^-1
C)310.18 g mol^-1
D)279.21 g mol^-1
E)246.18 g mol^-1

Question 80

Which of the following is one possible form of pentane?

A)CH₃CH₂CH₂CH₂CH₃
B)CH₃CH=CHCH₂CH₃
C)CH₃CH₂CH₂CH₂CH₂CH₃
D)CH₃CH₂CH₂CH₂CH₂NH₂
E)CH₃CH₂-O-CH₂CH₂CH₃