test on chapters 7-8

Question 1

this shows the arrangement of elements, single and double bonds, and lone pair valence electrons in a molecule

Answer 1

lewis structure

Question 2

this shows the arrangement of elements, single and double bonds, and lone pair valence electrons in a molecule

Answer 2

lewis structure

Question 3

when one atom donates both of the electrons to be shared w an atom or ion, this forms a ____ _____ ____

Answer 3

coordinate covalent bond

Question 4

another name for a single covalent bond is a

Answer 4

sigma bond

Question 5

what is an ionic compound that has more than one atom that behaves as a single unit called?

Answer 5

polyatomic ion

Question 6

the ____ ____ model proposes that all the metal atoms in a metallic solid contribute their valence electrons to flow around the metal cations

Answer 6

electron sea

Question 7

when an atom oses electrons it becomes a

Answer 7

cation

Question 8

an ionic reaction is always

Answer 8

exothermic

Question 9

____ form when nonmetals bond w the nonmetal oxygen

Answer 9

oxyanion

Question 10

an ionic solution that conducts electricity is called an

Answer 10

electrolyte

Question 11

the 3D geometric arrangement of particles is called a ____ lattice

Answer 11

crystal

Question 12

the simplest ratio of ions involved in an ionic compound is called a ___ unit

Answer 12

formula

Question 13

a mixture of elements that has metallic properties is an

Answer 13

alloy

Question 14

the shorter the bond length, the ____ the bond

Answer 14

stronger

Question 15

_____ is when more than one valid lewis structure can be written for a molecule or an ion

Answer 15

resonance

Question 16

electrons that are free to move are called _____ electrons

Answer 16

delocalized

Question 17

____ electrons occupy a slightly larger orbital in the VESPR model

Answer 17

unpaired

Question 18

trigonal planar

Answer 18

120

Question 19

linear

Answer 19

180

Question 20

octahedral

Answer 20

90

Question 21

bent

Answer 21

104.5

Question 22

trigonal pyramidal

Answer 22

107.3

Question 23

tetrahedral

Answer 23

109.5

Question 24

when one atom donates both of the electrons to be shared w an atom or ion, this forms a ____ _____ ____

Answer 24

coordinate covalent bond

Question 25

another name for a single covalent bond is a

Answer 25

sigma bond

Question 26

what is an ionic compound that has more than one atom that behaves as a single unit called?

Answer 26

polyatomic ion

Question 27

the ____ ____ model proposes that all the metal atoms in a metallic solid contribute their valence electrons to flow around the metal cations

Answer 27

electron sea

Question 28

when an atom oses electrons it becomes a

Answer 28

cation

Question 29

an ionic reaction is always

Answer 29

exothermic

Question 30

____ form when nonmetals bond w the nonmetal oxygen

Answer 30

oxyanion

Question 31

an ionic solution that conducts electricity is called an

Answer 31

electrolyte

Question 32

the 3D geometric arrangement of particles is called a ____ lattice

Answer 32

crystal

Question 33

the simplest ratio of ions involved in an ionic compound is called a ___ unit

Answer 33

formula

Question 34

a mixture of elements that has metallic properties is an

Answer 34

alloy

Question 35

the shorter the bond length, the ____ the bond

Answer 35

stronger

Question 36

_____ is when more than one valid lewis structure can be written for a molecule or an ion

Answer 36

resonance

Question 37

electrons that are free to move are called _____ electrons

Answer 37

delocalized

Question 38

____ electrons occupy a slightly larger orbital in the VESPR model

Answer 38

unpaired

Question 39

trigonal planar

Answer 39

120

Question 40

linear

Answer 40

180

Question 41

octahedral

Answer 41

90

Question 42

bent

Answer 42

104.5

Question 43

trigonal pyramidal

Answer 43

107.3

Question 44

tetrahedral

Answer 44

109.5