Deck 3: Compounds and Chemical Bonds

Question 1

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

A)Ca₃N₂
B)Ca(NO₃)₂
C)Ca₂NO₃
D)Ca₂NO₂
E)CaNO₃

Answer 1

Ca(NO₃)₂

Question 2

Which of these pairs of elements would be most likely to form an ionic compound?

A)P and Br
B)Cu and K
C)C and O
D)O and Zn
E)Al and Rb

Answer 2

O and Zn

Question 3

Which is the correct formula for copper(II) phosphate?

A)Cu₂PO₄
B)Cu₃(PO₄)₂
C)Cu₂PO₃
D)Cu(PO₄)₂
E)Cu(PO₃)₂

Answer 3

Cu₃(PO₄)₂

Question 4

Which of these is an example of a physical property?

A)Corrosiveness of sulfuric acid
B)Toxicity of cyanide
C)Flammability of gasoline
D)Neutralization of stomach acid with an antacid
E)Lead becomes a liquid when heated to 601°C.

Question 5

Which of the following is a 'substance' according to the definition given in your textbook?

A)Air
B)Tap water
C)Sea water
D)Water
E)Toothpaste

Question 6

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

A)CaSe
B)Ca₂Se
C)CaSe₂
D)Ca₃Se
E)CaSe₃

Question 7

The rusting of a piece of iron under environmental conditions is a physical change.

Question 8

Which of these compounds is most likely to be ionic?

A)NCl₃
B)BaCl₂
C)CO
D)SO₂
E)SF₄

Question 9

The juice from an orange is a mixture.

Question 10

Which of the following contains ionic bonding?

A)CO
B)SrF₂
C)Al
D)Cl₂
E)HCl

Question 11

If a liquid contains 60% sugar and 40% water throughout its composition then what is it called?

A)Solute
B)Compound
C)Homogeneous mixture
D)Heterogeneous mixture
E)Solvent

Question 12

A scoop of vanilla ice cream is a pure substance.

Question 13

Which of the following is an ionic compound?

A)H₂S
B)NH₃
C)I₂
D)KI
E)CCl₄

Question 14

Matter is anything that has mass and occupies space.

Question 15

The chemical name for ClO₃^- is "chlorate ion".What is the common name for HClO₃?

A)hydrochloric acid
B)chloroform
C)hydrogen trioxychloride
D)chlorous acid
E)chloric acid

Question 16

The formula for magnesium sulfate is

A)MnS
B)MgS
C)MnSO₃
D)MgSO₄
E)MnSO₄

Question 17

Which of these compounds is most likely to be ionic?

A)KF
B)CCl₄
C)CS₂
D)CO₂
E)ICl

Question 18

Which pair of elements would be most likely to form an ionic compound?

A)P and Br
B)Zn and K
C)F and Al
D)C and S
E)Al and Rb

Question 19

Which of these pairs of elements would be most likely to form an ionic compound?

A)Cl and I
B)Al and K
C)Cl and Mg
D)C and S
E)Al and Mg

Question 20

Which of these compounds is most likely to be ionic?

A)GaAs
B)SrBr₂
C)NO₂
D)CBr₄
E)H₂O

Question 21

Determine the charge on the unknown ion, X, in the compound Mg₂X₃.

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

Question 22

The chemical formula for iron(II) nitrate is

A)Fe₂(NO₃)₃
B)Ir(NO₂)₂
C)Fe₂N₃
D)Fe(NO₃)₂
E)Fe(NO₂)₂

Question 23

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

A)KMnO₃
B)KMnO₄
C)K₂MnO₄
D)K(MnO₄)₂
E)K₂Mn₂O₇

Question 24

Determine the formula of the compound formed from X³⁺ and Y²⁻.

A)X₃Y₂
B)XY
C)X₂Y₃
D)XY₂

Question 25

Determine the formula of the compound formed from Al³⁺ and S²⁻.

A)Al₃S₂
B)AlS
C)Al₂S₃
D)AlS₂

Question 26

Determine the charge on the unknown ion, A, in the compound AO.

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

Question 27

Determine the charge on the unknown ion, X, in the compound AlX₃.

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

Question 28

The formula for sodium sulfide is

A)NaS
B)K₂S
C)NaS₂
D)Na₂S
E)SeS

Question 29

What is the name of Ba(NO₂)₂·3H₂O?

A)barium nitrite
B)trihydrobarium(II) nitrite
C)barium nitrite trihydrate
D)barium(II) nitrite trihydrate
E)barium nitrate trihydrate

Question 30

What is the name of Mn(CO₃)₂?

A)manganese carbide
B)magnesium(IV) carbonate
C)manganese(II) carbonate
D)magnesium(II) carbonate
E)manganese(IV) carbonate

Question 31

Determine the formula of the compound formed from Mg²⁺ and P³⁻.

A)Mg₃P₂
B)MgP
C)Mg₂P₃
D)MgP₂

Question 32

Determine the formula of the compound formed from K⁺ and O²⁻.

A)K₃O₂
B)K₂O
C)K₂O₃
D)KO₂

Question 33

Determine the charge on the unknown ion, A, in the compound A₂S.

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

Question 34

What is the formula for lead(II) oxide?

A)PbO
B)PbO₂
C)Pb₂O
D)PbO₄
E)Pb₂O₃

Question 35

Which one of the following formulas of ionic compounds is the least likely to be correct?

A)NH₄Cl
B)Ba(OH)₂
C)Na₂SO₄
D)Ca₂NO₃
E)Cu(CN)₂

Question 36

Ferric oxide is used as a pigment in metal polishing.Which of the following is its formula?

A)FeO
B)Fe₂O
C)FeO₃
D)Fe₂O₅
E)Fe₂O₃

Question 37

Determine the charge on the unknown ion, A, in the compound ACl2.

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

Question 38

Determine the charge on the unknown ion, A, in the compound A₃N₂.

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

Question 39

Determine the charge on the unknown ion, X, in the compound NaX.

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

Question 40

Determine the charge on the unknown ion, X, in the compound MgX₂.
A.+2
B.+1
C.-1
D.-2

Question 41

Diiodine pentaoxide is used as an oxidizing agent that converts carbon monoxide to carbon dioxide.What is its chemical formula?

A)I₂O₅
B)IO₅
C)2IO₅
D)I₅O₂
E)(IO₅)₂

Question 42

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

A)phosphorus sulfide
B)phosphoric sulfide
C)phosphorus decasulfide
D)tetraphosphorus decasulfide
E)phosphorus sulfite

Question 43

What is the formula of hydrobromic acid?

A)H₂OBr
B)HBrO₃
C)HBrO
D)HBr
E)HBr·2H₂O

Question 44

Which of these compounds is most likely to be covalent?

A)Rb₂S
B)SrCl₂
C)CS₂
D)CaO
E)MgI₂

Question 45

Which of these compounds is most likely to be covalent?

A)KF
B)CaCl₂
C)SF₄
D)Al₂O₃
E)CaSO₄

Question 46

Which of the following is a covalent compound?

A)Na₂O
B)CaCl₂
C)Cl₂O
D)CsCl
E)Al₂O₃

Question 47

What types of elements undergo ionic bonding?

A)two metals
B)a nonmetal and a metal
C)two nonmetals
D)two Group 1A elements
E)two noble gases

Question 48

What types of elements undergo covalent bonding?

A)a metal and a noble gas
B)a nonmetal and a metal
C)two nonmetals
D)two Group 1A elements
E)an actinide

Question 49

What is the name of P₄Se₃ ?

A)phosphorus selenide
B)phosphorus triselenide
C)tetraphosphorus selenide
D)phosphoric selenide
E)tetraphosphorus triselenide

Question 50

Tetrasulfur dinitride decomposes explosively when heated.What is its formula?

A)S₂N₄
B)S₄N₂
C)4SN₂
D)S₄N
E)S₂N

Question 51

What is the formula of iodous acid?

A)HI
B)HIO₃
C)HIO
D)HIO₄
E)HIO₂

Question 52

What is the name of ClO ⁻ ion?

A)hypochlorite
B)chlorate
C)chlorite
D)perchlorate
E)perchlorite

Question 53

What is the formula for the permanganate ion?

A)MnO₂⁻
B)MnO₄⁻
C)MgO₄²⁻
D)Mn₂O₇⁻
E)MgO₂²⁻

Question 54

Which of the following contains covalent bonds?

A)BaO
B)IBr
C)Mg
D)LiBr
E)Cu

Question 55

Which of the following is the oxoanion of bromine called the bromate ion?

A)BrO₃⁻
B)BrO₃²⁻
C)BrO₄²⁻
D)BrO₂⁻
E)BrO⁻

Question 56

What is the name of PCl₃?

A)phosphorus chloride
B)phosphoric chloride
C)phosphorus trichlorate
D)trichlorophosphide
E)phosphorus trichloride

Question 57

Iron(III) chloride hexahydrate is used as a coagulant for sewage and industrial wastes.What is its formula?

A)Fe(Cl·6H₂O)₃
B)Fe₃Cl·6H₂O
C)FeCl₃(H₂O)₆
D)Fe₃Cl(H₂O)₆
E)FeCl₃·6H₂O

Question 58

Which of these compounds is most likely to be covalent?

A)CsOH
B)NF₃
C)Sr(NO₃)₂
D)CaO
E)LiF

Question 59

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

A)C₂H₆
B)C₃H₉
C)C₄H₁₀
D)C₆H₆
E)None of the answers is correct.

Question 60

Which of the following is the empirical formula for hexane, C₆H₁₄?

A)C₁₂H₂₈
B)C₆H₁₄
C)C₃H₇
D)CH_2.3
E)C_0.43H

Question 61

What is the chemical name of FeSO₃.

A)Iron(II) sulfite
B)Iron(III) sulfate
C)Iron sulfate
D)Iron sulfur trioxide
E)None of the above names is correct.

Question 62

Which of the following elements exists as a diatomic molecule in the elemental state?

A)O
B)He
C)Mg
D)Xe

Question 63

Which of the following elements exists as a diatomic molecule in the elemental state?

A)Li
B)Ne
C)Cl
D)Cu