Deck 6: Ionic and Molecular Compounds

Question 1

How many electrons will aluminum gain or lose when it forms an ion?

A)lose 1
B)gain 5
C)lose 2
D)lose 3
E)gain 1

Answer 1

lose 3

Question 2

What is the ionic charge of an ion with 13 protons and 10 electrons?

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

Answer 2

3+

Question 3

Which one of the following compounds contains an ion with a 3+ charge?

A)KCl
B) O
C)
D)CuCl
E)

Answer 3

Question 4

An anion always ________.

A)has a positive charge
B)contains a group of two or more atoms with a positive charge
C)contains a metal and a nonmetal
D)forms covalent bonds
E)has a negative charge

Question 5

The compound is named ________.

A)magnesium chlorine
B)magnesium dichloride
C)magnesium(II)chloride
D)magnesium chloride
E)dimagnesium chloride

Question 6

In ionic compounds,________ lose their valence electrons to form positively charged ________.

A)metals,anions
B)nonmetals,cations
C)metals,polyatomic ions
D)nonmetals,anions
E)metals,cations

Question 7

The correct formula for the compound formed from Mg and S is ________.

A)MgS
B)
C) S
D)
E)

Question 8

The ion of aluminum is ________.

A)
B)
C)
D)
E)

Question 9

What is the symbol for the ion with 19 protons and 18 electrons?

A)F⁺
B)F^-
C)Ar⁺
D)K^-
E)K⁺

Question 10

What is the correct formula for the oxide ion?

A)
B)O
C)
D)
E)

Question 11

The name of the ion is ________.

A)copper(II)
B)copper(I)
C)copper(III)
D)copper
E)cuprum

Question 12

An ionic compound ________.

A)has a net positive charge
B)has a net negative charge
C)contains only cations
D)contains only anions
E)has a net charge of zero

Question 13

The number of electrons in an ion with 16 protons and an ionic charge of 2- is ________.

A)16
B)18
C)20
D)22
E)24

Question 14

When a cation is formed from a representative element ________.

A)electrons are gained and the ion is larger
B)electrons are gained and the ion is smaller
C)electrons are lost and the ion is larger
D)electrons are lost and the ion is smaller
E)the cation acquires a negative charge

Question 15

What is the correct formula for the iron(II)ion?

A)
B)
C)
D)
E)

Question 16

Elements in group 2A (2)of the periodic table form ions with a charge of ________.

A)1+
B)1-
C)2+
D)3+
E)0

Question 17

To form an ion,a sodium atom ________.

A)gains one electron
B)gains two electrons
C)loses seven electrons
D)loses one electron
E)loses two electrons

Question 18

The correct formula for a compound formed from the elements Al and O is ________.

A)AlO
B) O
C)
D)Al
E)

Question 19

Which one of the following elements forms two or more ions with different ionic charges?

A)K
B)F
C)Ca
D)O
E)Fe

Question 20

How many electrons will chlorine gain or lose when it forms an ion?

A)lose 1
B)gain 1
C)lose 7
D)gain 2
E)lose 3

Question 21

A(n)________ is the smallest neutral unit of two or more atoms held together by a covalent bond.

A)ionic compound
B)nucleus
C)molecule
D)formula
E)unit

Question 22

The name of is ________.

A)aluminum(III)sulfate
B)dialuminum trisulfate
C)dialuminum sulfate
D)dialuminum trisulfide
E)aluminum sulfate

Question 23

Double and triple bonds form because ________.

A)the atoms involved have high electronegativities
B)single covalent bonds do not give all of the atoms in the molecule eight valence electrons
C)one of the atoms in the molecule has more than 8 valence electrons
D)the ions involved have charges larger than one
E)there is at least one hydrogen atom involved in the bond

Question 24

Which of the following polyatomic ions has a 3- ionic charge?

A)hydroxide
B)nitrate
C)sulfate
D)phosphate
E)hydrogen carbonate

Question 25

Which of the following polyatomic ions has a positive charge?

A)hydroxide
B)cyanide
C)hydrogen carbonate
D)ammonium
E)nitrate

Question 26

A group of covalently bonded atoms that has an overall electrical charge is called a(n)________.

A)ionic compound
B)anion
C)polyatomic ion
D)cation
E)molecule

Question 27

In a molecule with covalent bonding,________.

A)oppositely charged ions are held together by strong electrical attractions
B)atoms of metals form bonds to atoms of nonmetals
C)atoms of different metals form bonds
D)atoms are held together by sharing electrons
E)atoms of noble gases are held together by attractions between oppositely charged ions

Question 28

What is the formula for aluminum nitrate?

A)
B)
C)Al
D)Al
E)

Question 29

The ability of an atom to attract the shared electrons in a covalent bond is its ________.

A)electronegativity
B)bonding ability
C)polarity
D)ionic character
E)nonpolarity

Question 30

In a covalently bonded molecule,the number of electrons that an atom shares with others is usually equal to the number of electrons ________.

A)in the atom
B)in its nucleus
C)in all the atoms
D)in its ion
E)needed to give it a noble gas arrangement

Question 31

Which of the following elements does not exist as a diatomic molecule?

A)hydrogen
B)nitrogen
C)chlorine
D)oxygen
E)carbon

Question 32

The name of the ion is ________.

A)sulfate
B)hydrogen sulfate
C)sulfite
D)hydrogen sulfite
E)sulfide

Question 33

What is the formula of carbon tetraiodide?

A)CI
B)
C) I
D)
E)

Question 34

What is the formula of a compound that contains and ions?

A)
B)
C)
D)
E) P

Question 35

According to naming rules,the types of compound that use prefixes in their names are ________.

A)ionic compounds
B)ionic compounds involving transition metals
C)polyatomic ions
D)molecular compounds
E)compounds that contain polyatomic ions

Question 36

The correct name for the compound is ________.

A)nitrogen oxide
B)nitrogen trioxide
C)dinitride trioxide
D)dinitrogen oxide
E)dinitrogen trioxide

Question 37

The correct name of the compound is ________.

A)nitrogen chloride
B)trinitrogen chloride
C)nitrogen(III)chloride
D)nickel chloride
E)nitrogen trichloride

Question 38

What is the formula of the nitride ion?

A)
B)
C)
D)
E)

Question 39

is called ________.

A)iron sulfate
B)iron(II)sulfate
C)iron(III)sulfate
D)diiron trisulfate
E)iron trisulfate

Question 40

What is the correct formula for iron(III)sulfide?

A)
B) S
C)FeS
D)
E)

Question 41

The ammonia molecule (NH₃)is ________.

A)a polar molecule with polar bonds
B)a nonpolar molecule with polar bonds
C)a nonpolar molecule with nonpolar bonds
D)a polar molecule with nonpolar bonds
E)a polar molecule with ionic bonds

Question 42

The carbon tetrachloride molecule,CC ,has the shape of a ________.

A)tetrahedron
B)square
C)cube
D)circle
E)sphere

Question 43

The carbon tetrachloride molecule,CC ,is ________.

A)a polar molecule with polar bonds
B)a nonpolar molecule with polar bonds
C)a nonpolar molecule with nonpolar bonds
D)a polar molecule with nonpolar bonds
E)a polar molecule with ionic bonds

Question 44

Ionic bonding is expected in which of these compounds?

A)
B)KF
C)
D)HF
E)

Question 45

A polar covalent bond is found in which of these compounds?

A) H₂O
B)
C)NaCl
D)
E)

Question 46

The main type of attractive forces between molecules of carbon tetrabromide (CBr₄)are ________.

A)ionic bonds
B)hydrogen bonds
C)polar covalent
D)dipole-dipole attractions
E)dispersion forces

Question 47

Identify each of the following compounds as covalent or ionic.
carbon dioxide

Question 48

The VSEPR theory allows us to determine the ________.

A)shape of a molecule
B)charge on an ion
C)color of a compound
D)bond type for a molecule
E)formula for a compound

Question 49

The shape of the water molecule (H₂O)is ________.

A)linear
B)tetrahedral
C)trigonal pyramidal
D)bent
E)trigonal planar

Question 50

The bond in is a(n)________.

A)ionic bond
B)nonpolar covalent bond
C)metallic bond
D)polar ionic bond
E)no bond

Question 51

Identify each of the following compounds as covalent or ionic.
carbon tetrachloride

Question 52

The main type of attractive forces between molecules of hydrogen (H₂)are ________.

A)ionic bonds
B)hydrogen bonds
C)polar covalent
D)dipole-dipole attractions
E)dispersion forces

Question 53

The shape of the methane molecule (CH₄)is ________.

A)linear
B)tetrahedral
C)trigonal pyramidal
D)bent
E)trigonal planar

Question 54

Which of the following compounds contains an ionic bond?

A)
B) O
C)CaO
D)
E)

Question 55

The shape of the ammonia molecule (NH₃)is ________.

A)linear
B)trigonal planar
C)trigonal pyramidal
D)tetrahedral
E)bent

Question 56

Which of the following compounds contains a polar covalent bond?

A)NaF
B)HCl
C)
D)MgO
E)

Question 57

Identify each of the following compounds as covalent or ionic.
dihydrogen sulfide

Question 58

The main type of attractive forces between molecules of ammonia (NH₃)are ________.

A)ionic bonds
B)hydrogen bonds
C)polar covalent
D)dipole-dipole attractions
E)dispersion forces

Question 59

Which of the following substances contains a nonpolar covalent bond?

A) H₂O
B)NaCl
C)
D)
E)

Question 60

Identify each of the following compounds as covalent or ionic.
potassium oxide

Question 61

The formula for iron(II)sulfide is FeS.

Question 62

The name of the compound CuSO₄ is copper(I)sulfate.

Question 63

When barium and chlorine combine,the formula of the product is BaCl₃.

Question 64

A sulfur atom gains electrons to form an ion with a charge of 2-.

Question 65

The name of the compound CuO is copper(II)oxide.

Question 66

The common ions of iron are Fe⁺ and Fe²⁺.

Question 67

Identify each of the following compounds as covalent or ionic.
sodium fluoride

Question 68

When calcium and oxygen combine,the formula of the product is CaO.

Question 69

The formula for hydroxide is OH^-.

Question 70

For halogens,the group number is the same as the ionic charge.

Question 71

The name of the compound Fe₂S₃ is iron(II)sulfide.

Question 72

A potassium atom gains electrons to form an ion with a charge of 1-.

Question 73

Identify each of the following compounds as covalent or ionic.
nitrogen trichloride

Question 74

When Al³⁺ and SO₄^2- combine,the formula of the product is Al₂^(SO4)₃.

Question 75

When Al³⁺ and Br^- combine,the formula of the product is Al₃Br.

Question 76

Molecular compounds are formed from ions.

Question 77

The name of the compound AlCl₃ is aluminum trichloride.

Question 78

A positive ion has more protons that electrons.

Question 79

The formula of the compound chromium(III)oxide is Cr₂O₃.

Question 80

The name of the compound K₃N is potassium nitride.