Deck 6: Ionic and Molecular Compounds

Question 1

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

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

Answer 1

Question 2

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

Answer 2

has a net charge of zero

Question 3

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

Answer 3

metals,cations

Question 4

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 5

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 6

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

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

Question 7

The compound is named ________.

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

Question 8

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

A)F+
B)F-
C)Ar+
D)K-
E)K+

Question 9

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 10

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

Question 11

What is the correct formula for the oxide ion?

A)
B)O
C)
D)
E)

Question 12

The ion of aluminum is ________.

A)
B)
C)
D)
E)

Question 13

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 14

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

A)
B)
C)
D)
E)

Question 15

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 16

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

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

Question 17

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 18

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 19

What is the ionic charge of an ion with 38 protons and 36 electrons?

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

Question 20

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

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

Question 21

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 22

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 23

The correct name of the compound is ________.

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

Question 24

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 25

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

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

Question 26

is called ________.

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

Question 27

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 28

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 29

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

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

Question 30

What is the formula of the nitride ion?

A)
B)
C)
D)
E)

Question 31

The correct name for the compound is ________.

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

Question 32

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

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

Question 33

Which of the following polyatomic ions has a positive charge?

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

Question 34

What is the formula for aluminum nitrate?

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

Question 35

The name of is ________.

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

Question 36

What is the formula of carbon tetraiodide?

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

Question 37

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

A)
B)
C)
D)
E) P

Question 38

The name of the ion is ________.

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

Question 39

The compound is named ________.

A)copper(III)chloride
B)copper trichloride
C)cobalt(III)chloride
D)cobalt trichloride
E)tricobalt chloride

Question 40

The name of the ion is ________.

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

Question 41

The shape of a molecule with a central atom that has two bonded atoms and one lone pair is ________.

A)linear
B)bent (120°)
C)trigonal pyramidal
D)bent (109°)
E)trigonal planar

Question 42

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 43

Ionic bonding is expected in which of these compounds?

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

Question 44

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 45

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

A)linear
B)trigonal planar
C)trigonal pyramidal
D)tetrahedral
E)bent (109°)

Question 46

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

A)linear
B)tetrahedral
C)trigonal pyramidal
D)bent (109°)
E)trigonal planar

Question 47

The bond in is a(n)________.

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

Question 48

The main type of intermolecular forces between particles of ammonia (NH3)are ________.

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

Question 49

The main type of intermolecular forces between particles of carbon tetrafluoride (CF4)are ________.

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

Question 50

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 51

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 52

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

A) O
B)
C)NaCl
D)
E)

Question 53

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

A)linear
B)tetrahedral
C)trigonal pyramidal
D)bent (109°)
E)trigonal planar

Question 54

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

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

Question 55

Which of the following substances contains a nonpolar covalent bond?

A) O
B)NaCl
C)
D)
E)

Question 56

The molecule SO3 has ________ valence electrons.

A)4
B)6
C)12
D)16
E)24

Question 57

Which of the following compounds contains a polar covalent bond?

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

Question 58

The molecule CO2 has ________ valence electrons.

A)4
B)6
C)12
D)16
E)24

Question 59

Which of the following compounds contains an ionic bond?

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

Question 60

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 61

Identify each of the following compounds as covalent or ionic.

-dihydrogen sulfide

Question 62

Identify each of the following compounds as covalent or ionic.

-carbon dioxide

Question 63

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

Question 64

The name of the compound K3N is potassium nitride.

Question 65

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

Question 66

A positive ion has more protons that electrons.

Question 67

Identify each of the following compounds as covalent or ionic.

-nitrogen trichloride

Question 68

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

Question 69

Identify each of the following compounds as covalent or ionic.

-sodium fluoride

Question 70

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

Question 71

The name of the compound AlCl3 is aluminum trichloride.

Question 72

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

Question 73

The main type of intermolecular forces between particles of NaCl are ________.

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

Question 74

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

Question 75

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

Question 76

Identify each of the following compounds as covalent or ionic.

-potassium oxide

Question 77

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

Question 78

Identify each of the following compounds as covalent or ionic.

-carbon tetrachloride

Question 79

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

Question 80

The main type of intermolecular forces between particles of hydrogen (H2)are ________.

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