Deck 3: Chemical Compounds

Question 1

The name of the oxoanion of sulfur with a 2-charge shown in the figure is:

A)sulfite ion.
B)sulfate ion.
C)sulfide ion.
D)sulfurous ion.
E)sulfoxate ion.

Answer 1

sulfite ion.

Question 2

Which of the following statements regarding ionic and molecular compounds is correct?

A)Molecular compounds are expected to have very high melting and boiling points compared to ionic compounds.
B)Molecular compounds are strong electrolytes in aqueous solution.
C)An ionic compound can be a gas, liquid, or solid at room temperature.
D)Molecular compounds form crystalline solids that are hard and brittle.
E)Ionic compounds are expected to have very high melting and boiling points compared to ionic compounds.

Answer 2

Ionic compounds are expected to have very high melting and boiling points compared to ionic compounds.

Question 3

Which of the following combinations of elements in a compound would be ionic?

A)barium and fluorine
B)hydrogen and sulfur
C)sulfur and oxygen
D)hydrogen and fluorine
E)all of these

Answer 3

barium and fluorine

Question 4

The name of the oxoanion of nitrogen with a 1-charge shown in the figure is:

A)nitrooxate ion.
B)nitride ion.
C)nitrite ion.
D)nitrate ion.
E)nitrous ion.

Question 5

Which of the substance(s) shown in the figure is molecular?

A)Na₃N
B)KNO₃
C)NO₂
D)Both Na₃N and KNO₃
E)Both KNO₃ and NO₂

Question 6

Which of the following combinations of elements in a compound would be molecular?

A)sodium and nitrogen
B)calcium and oxygen
C)nitrogen and oxygen
D)potassium and chlorine
E)sodium and sulfur

Question 7

Rank the boiling points of the following compounds from lowest to highest: CO₂, LiF, H₂O

A)CO₂ < H₂O < LiF
B)CO₂ < LiF < H₂O
C)LiF < CO₂ < H₂O
D)H₂O < LiF < CO₂
E)H₂O < CO₂ < LiF

Question 8

Which of the following is classified as an ionic compound?

A)NO₂
B)CF₄
C)CH₃OH
D)CaCO₃
E)all of these

Question 9

Which of the substance(s) shown in the figure is ionic?

A)K₂S
B)Na₂SO₄
C)SO₂
D)Both Na₂SO₄ and SO₂
E)Both K₂S and Na₂SO₄

Question 10

Which combination of formula and name is incorrect?

A)S^2- = sulfide ion
B)Br^- = bromide ion
C)Li⁺ = lithium ion
D)Sr⁺ = strontium ion
E)P^3- = phosphide ion

Question 11

Which combination of formula and name is incorrect?

A)Na⁺ = sodium ion
B)Ca²⁺ = calcium ion
C)N^2- = nitride ion
D)F^- = fluoride ion
E)O^2-= oxide ion

Question 12

Which of the following is the correct formula for the nitride ion?

A)N₂
B)NO₂-
C)NO₃^-
D)N₂^3-
E)N₃^-

Question 13

The name of the oxoanion of nitrogen with a 1- charge shown in the figure is:

A)nitrooxate ion.
B)nitride ion.
C)nitrite ion.
D)nitrate ion.
E)nitrous ion.

Question 14

Rank the boiling points of the following compounds from lowest to highest: C₁₂H₂₂O₁₁ (sucrose), O₂, NaF

A)C₁₂H₂₂O₁₁ (sucrose) < O₂ < NaF
B)O₂ < NaF < C₁₂H₂₂O₁₁ (sucrose)
C)O₂ < C₁₂H₂₂O₁₁ (sucrose) < NaF
D)NaF < O₂ < C₁₂H₂₂O₁₁ (sucrose)
E)NaF < C₁₂H₂₂O₁₁ (sucrose) < O₂

Question 15

Which combination of formula and name is incorrect?

A)K⁺ = potassium ion
B)I^- = iodide ion
C)Mg⁺ = magnesium ion
D)S^2- = sulfide ion
E)N^3- = nitride ion

Question 16

Which of the following combinations of elements in a compound would be ionic?

A)sodium and sulfur
B)nitrogen and sulfur
C)phosphorus and fluorine
D)hydrogen and oxygen
E)all of these

Question 17

Which of the following is classified as a molecular compound?

A)OH^-
B)N₂
C)SO₂
D)Mg(NO₃)₂
E)all of these

Question 18

The figure shows all but which of the following:

A)two elements and a compound.
B)a chemical reaction.
C)one mixture and one pure substance.
D)three compounds.
E)five molecules.

Question 19

Rank the boiling points of the following compounds from lowest to highest: N₂, MgO, C₂H₅OH (ethyl alcohol)

A)MgO < C₂H₅OH (ethyl alcohol) < N₂
B)MgO < N₂ < C₂H₅OH (ethyl alcohol)
C)N₂ < MgO < C₂H₅OH (ethyl alcohol)
D)N₂ < C₂H₅OH (ethyl alcohol) < MgO
E)C₂H₅OH (ethyl alcohol) < N₂ < MgO

Question 20

Which of the following is the correct formula for the bromide ion?

A)Br₂
B)Br₂^-
C)Br₂^2-
D)Br^-
E)BrO₃^-

Question 21

Based on common charges, which formula for an ionic compound is incorrect?

A)NaClO₃
B)Sr(NO₃)₂
C)AlCl₃
D)KI
E)MgBr

Question 22

The formula for the iodate ion is IO₃^-.What is the formula for the hypoiodite ion?

A)IO₄^-
B)IO₂^-
C)IO^-
D)IO₃^2-
E)I^-

Question 23

The formula for the phosphate ion is:

A)PO₃^2-
B)PO₃^4-
C)PO₃^3-
D)PO₄^2-
E)PO₄^3-

Question 24

Which of the following combinations of formula and name is incorrect?

A)hydroxide ion = OH^-
B)nitrate ion = NO₃^-
C)sulfide ion = SO₃^2-
D)nitrite ion = NO₂-
E)sulfate ion = SO₄^2-

Question 25

Which of the following formulas for a compound containing the Cu²⁺ ion is incorrect?

A)Cu(NO₃)₂
B)CuS
C)CuN
D)CuSO₄
E)CuSO₃

Question 26

The formula for the bicarbonate ion is:

A)C₂O₃^2-
B)CO₃^2-
C)HCO₃^2-
D)HCO₃ ^-
E)C₂O₄^2-

Question 27

The formula for the chlorate ion is ClO₃-.What is the formula for the perchlorate ion?

A)ClO₄^-
B)ClO₂^-
C)ClO^-
D)ClO₃^2-
E)PClO₃^-

Question 28

Which of the following combinations of formula and name is incorrect?

A)carbonate ion = CO₃^2-
B)ammonium ion = NH₃
C)bicarbonate ion = HCO₃^-
D)periodate ion = IO₄^-
E)hypochlorite ion = ClO^-

Question 29

Which of the following combinations of formula and name is incorrect?

A)nitride ion = NO₂^-
B)cyanide ion = CN^-
C)chlorite ion = ClO₂^-
D)perchlorate ion = ClO₄^-
E)chloride ion = Cl^-

Question 30

The formula for the bromate ion is BrO₃^-.What is the formula for the bromite ion?

A)BrO₄^-
B)BrO₂^-
C)BrO^-
D)BrO₃^2-
E)Br^-

Question 31

Based on common charges, which formula for an ionic compound is incorrect?

A)LiCO₃
B)NaBr
C)CaO
D)SrS
E)MgCl₂

Question 32

Based on common charges, which formula for an ionic compound is incorrect?

A)Ba(NO₃)₂
B)Ca(OH)₂
C)MgCl₃
D)Al₂O₃
E)KBr

Question 33

The formula for the ammonium ion is:

A)NH₃⁺
B)NH₃
C)NH₄⁺
D)NH₄
E)NH₄^-

Question 34

The formula for the chlorite ion is:

A)ClO^-
B)ClO₂^-
C)ClO₃^-
D)ClO₄^-
E)ClO₂^2-

Question 35

The formula for the acetate ion is:

A)CH₃CO₂^-
B)CH₂CO₃^-
C)CH₃CO₂^2-
D)CH₃CO₂^3-
E)CH₂CO₂^-

Question 36

Which of the following formulas for a compound containing the Fe³⁺ ion is incorrect?

A)FeS
B)Fe₂S₃
C)FeN
D)FePO₄
E)FeBr₃

Question 37

Which of the following formulas for a compound containing the Fe²⁺ ion is incorrect?

A)FeO
B)FeCl
C)FeS
D)FeSO₄
E)Fe(NO₃)₂

Question 38

Based on common charges, which formula for an ionic compound is incorrect?

A)Li₂S
B)CaO
C)Na₃N
D)K₂Cl
E)Mg(OH)₂

Question 39

The formula for the permanganate ion is:

A)MnO₄^-
B)MnO₂^2-
C)MnO₃^-
D)MnO₃^2-
E)MnO₄^2-

Question 40

Based on common charges, which formula for an ionic compound is incorrect?

A)CaCl
B)NaF
C)SrO
D)MgS
E)K₃P

Question 41

What is the correct formula for the compound chromium(III) sulfide?

A)CrS
B)Cr₃S
C)CrS₃
D)Cr₃S₂
E)Cr₂S₃

Question 42

Which of the following formula/name pairs is incorrect?

A)FeO iron(II) oxide
B)K₂SO₄ potassium sulfide
C)MnO₄ manganese(IV) oxide
D)LiOH lithium hydroxide
E)MgO magnesium oxide

Question 43

What is the correct formula for the compound lead(IV) oxide?

A)PbO₂
B)PbO₄
C)Pb₂O
D)Pb₄O
E)PbO

Question 44

Which of the following formula/name pairs is incorrect?

A)MnO manganese(II) oxide
B)CaO calcium oxide
C)MgCl₂ magnesium chloride
D)AlP aluminum phosphide
E)Li₂SO₃ dilithium sulfite

Question 45

Which of the following formula/name pairs is incorrect?

A)K₂SO₄ potassium sulfate
B)Na₃N sodium nitride
C)Li₂CO₃ lithium carbonate
D)Fe₂O₃ iron(II) oxide
E)Cu₂S copper(I) sulfide

Question 46

The images in the figure represent aqueous solutions of ionic compounds.Which could correspond to Na₂S?

A)I only
B)II only
C)III only
D)I and III
E)II and III

Question 47

What is the formula for a compound composed of Cr³⁺ ions and SO₃^2- ions?

A)CrSO3
B)Cr₂(SO₃)₃
C)Cr₃(SO₃)₂
D)Cr(SO₃)₂
E)Cr(SO₃)₃

Question 48

What is the formula for a compound composed of Ca²⁺ ions and PO₄^3- ions?

A)CaPO₄
B)Ca₂(PO₄)₃
C)Ca₃(PO₄)₂
D)Ca(PO₄)₂
E)Ca(PO₄)₃

Question 49

What is the correct formula for the compound formed between the cobalt(III) ion and the sulfate ion?

A)CoSO₄
B)Co₂(SO₄)₃
C)Co₃(SO₄)₂
D)Co₂S₃
E)CoS₃

Question 50

What is the correct formula for the compound formed between iron(III) ion and the oxide ion?

A)FeO
B)Fe₂O₃
C)Fe₃O₂
D)Fe₃O₄
E)FeO₃

Question 51

The images in the figure represent aqueous solutions of ionic compounds.Which could correspond to BaCl₂?

A)I only
B)II only
C)III only
D)I and III
E)II and III

Question 52

Which of the following formula/name pairs is incorrect?

A)RbS rubidium sulfide
B)K₂CO₃ potassium carbonate
C)NaClO₄ sodium chloroxate
D)Fe₂S₃ iron(III) sulfide
E)K₂O potassium oxide

Question 53

What is the correct formula for the compound formed between copper(II) ion and the phosphide ion?

A)CuPO₄
B)Cu₂PO₄
C)Cu₃(PO₄)₂
D)Cu₃P₂
E)CuP

Question 54

What is the correct formula for the compound formed between the aluminum ion and the sulfide ion?

A)Al₃S₂
B)AlS
C)Al₂S
D)AlS₂
E)Al₂S₃

Question 55

Which of the following is the correct formula for the compound with the name calcium nitride?

A)CaN
B)Ca₃N₂
C)Ca₂N₃
D)CaN₂
E)Ca₂N

Question 56

What is the correct formula for the compound formed between the calcium ion and the sulfate ion?

A)CaSO₄
B)Ca₂(SO₄)₂
C)Ca(SO₄)₂
D)CaS
E)CaSO₃

Question 57

Which of the following formulas for a compound containing the Cr²⁺ ion is incorrect?

A)CrClO₄
B)CrSO₄
C)CrO
D)CrS
E)CrCl₂

Question 58

Which of the following formula/name pairs is incorrect?

A)BaBr₂ barium bromide
B)CuO copper(II) oxide
C)MgCl₂ magnesium dichloride
D)Sr(OH)₂ strontium hydroxide
E)LiNO₃ lithium nitrate

Question 59

What is the correct formula for the compound formed between the aluminum ion and the hydroxide ion?

A)AlOH
B)Al(OH)₂
C)Al(OH)₃
D)Al₃OH
E)AlH₃

Question 60

Which of the following is the correct formula for the compound with the name iron(II) phosphate?

A)FeP
B)Fe₃(PO₄)₂
C)FePO₄
D)Fe₂(PO₃)₃
E)Fe₂(PO₄)₃

Question 61

The compound NO₂ is a reddish brown gas with a boiling of 21 $\degree$ C.Name this molecular compound.

A)nitrogen (IV) oxide
B)nitrogen dioxide
C)nitrogen oxide
D)nitrate
E)nitrite

Question 62

Which of the following is the correct name for the compound Mn₂O₃?

A)dimanganese trioxide
B)manganate ion
C)manganese(III) oxide
D)manganese(II) oxide
E)manganese oxide

Question 63

Which of the following is the correct formula for the compound with the name manganese(II) phosphate?

A)Mn₃(PO₄)₂
B)Mn₂(PO₄)₃
C)MnPO₄
D)Mn₃P₂
E)Mn₂P₃

Question 64

Which of the following compound names is not correct?

A)iron(III) sulfate
B)copper(II) diphosphide
C)sodium hydroxide
D)potassium nitrate
E)calcium sulfide

Question 65

The compound SO₂ is a colorless gas with a boiling of -10 $\degree$ C.Name this molecular compound.

A)sulfate
B)sulfite
C)sulfur(IV) oxide
D)sulfur dioxide
E)sulfur(II) oxide

Question 66

Which of the following is the correct formula for the compound with the name copper(II) sulfate?

A)Cu₂S
B)CuS₂
C)Cu₂SO₄
D)CuSO₄
E)CuSO₃

Question 67

Which of the following compound names is not correct?

A)calcium hydroxide
B)iron(II) dichloride
C)potassium fluoride
D)sodium cyanide
E)ammonium hydroxide

Question 68

Which of the following is the correct name for the compound CoBr₂?

A)cobalt bromide
B)cobalt(II) bromide
C)cobalt dibromide
D)cobalt(II) bromate
E)cobalt(IV) bromide

Question 69

Which of the following is the correct formula for the compound with the name aluminum sulfide?

A)AlS
B)Al₃S₂
C)Al₂S₃
D)AlSO₄
E)Al₂(SO₄)₃

Question 70

The correct formulas for the compounds in the figure are:

A)Cl₃P, Cl₆S, C₃H₂F₆
B)PCl₃, SCl₆, C₃H₆F₂
C)PCl₃, SCl₄, C₃H₆F₃
D)P₃Cl, S₆Cl, C₃H₆F₂
E)PCl₃, SCl₈, C₃H₆F₂

Question 71

The formula for copper(I) sulfide is:

A)CuS
B)CuS₂
C)Cu₂S
D)CuSO₄
E)Cu₂SO₄

Question 72

Which of the following formula/name combinations is incorrect?

A)CS₂ carbon disulfide
B)SO₂ sulfur dioxide
C)N₂O₅ dinitrogen tetroxide
D)PF₃ phosphorus trifluoride
E)P₄O₁₀ tetraphosphorus decoxide

Question 73

Which of the following formula/name combinations is incorrect?

A)N₂O₄ dinitrogen tetroxide
B)ClO₂ dichlorine oxide
C)SO₃ sulfur trioxide
D)CS₂ carbon disulfide
E)PCl₃ phosphorus trichloride

Question 74

The compound ClO₃ is a dark brown solid powder that is not stable above 25 $\degree$ C.Name this molecular compound.

A)chlorine trioxide
B)chlorine oxide
C)chlorate
D)chlorite
E)chlorine(VI) oxide

Question 75

Suppose you need iron(II) phosphate for an experiment.Which of these compounds would you use?

A)FeP
B)(Fe₃P₂ )
C)(Fe₂(PO₄)₃ )
D)(Fe₃(PO₄)₂ )

Question 76

The correct formulas for the compounds in the figure are:

A)NF₃, P₄O₁₀, C₂H₄C_l2
B)NF₃, P₄O₈, C₂H₄C_l2
C)NF₃, P₄O₁₀, C₂H₂C_l4
D)NF₄, P₃O₁₀, C₂H₂C_l4
E)NF₄, P₃O₁₀, C₂H₂C_l2

Question 77

The formula for calcium nitrate is:

A)CaNO₃
B)Ca₂NO₃
C)Ca(NO₃)₂
D)Ca(NO₃)₃
E)Ca(NO₂)₂

Question 78

The formula for barium carbonate is:

A)Ba₂CO₃
B)BaCO₃
C)BaCO₂
D)BaCO

Question 79

Which of the following compound names is not correct?

A)strontium dinitrate
B)sodium oxide
C)copper(II) carbonate
D)potassium permanganate
E)silver chloride

Question 80

Which of the following is the correct name for the compound FeSO₄?

A)iron(II) sulfate
B)iron(IV) sulfate
C)iron sulfate
D)iron sulfur tetroxide
E)iron sulfite