chem chapter 6 quiz 2 Flashcards Preview

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Flashcards in chem chapter 6 quiz 2 Deck (24)
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0
Q

3 electron domains means _____ electron geometry and _____ bond angles

A

trigonal planar 120

1
Q

2 electron domains means _____ electron geometry and _____ bond angles

A

linear, 180

2
Q

4 electron domains means _____ electron geometry and _____ bond angles

A

tetrahedral, 109.5

3
Q

5 electron domains means _____ electron geometry and _____ bond angles

A

trigonal bipyramidal 180/120/90

4
Q

6 electron domains means _____ electron geometry and _____ bond angles

A

octahedral 180/90

5
Q

if a molecule has 2 total electron domains

what will it look like with 0,1,2,3 lone pairs on the central atom

A

linear—-

6
Q

if a molecule has 3 total electron domains

what will it look like with 0,1,2,3 lone pairs on the central atom

A

trigonal planar, bent, linear,–

7
Q

if a molecule has 4 total electron domains

what will it look like with 0,1,2,3 lone pairs on the central atom

A

tetrahedral, trigonal pyramidal, bent, —

8
Q

if a molecule has 5 total electron domains

what will it look like with 0,1,2,3 lone pairs on the central atom

A

trigonal bipyramdial, see-saw, T-shaped, linear

9
Q

if a molecule has 6 total electron domains

what will it look like with 0,1,2,3 lone pairs on the central atom

A

octahedral, square pyramidal, square planar, T-shaped

10
Q

lone pairs on the central atom will result in a bond angle that is ____________ ideal

A

less than

11
Q

ionic bonds are a ____ of electrons between a ______ (which loses electrons and becomes a _____) and a _________ (which gains electrons and becomes a _______)

A

transfer, metal, cation, nonmetal, anion

12
Q

covalent bonds are the _____ of electrons between two ________, one cation and one anion

A

sharing, nonmetals

13
Q

equal sharing in covalent bonds means ____

unequal sharing means _____

A

nonpolar (do not have opposite ends), polar

14
Q

how do you indicate if a bond is ionic, polar, or nonpolar

A

ionic- >1.7
polar- .5-1.7
nonpolar- 0-.4

15
Q

explain AXE notation

A

A-central atom
X- atoms bonded to central atom
E- lone pairs on central atom only
example) PF5’s notation would be AX5

16
Q

of hybrid orbitals formed= what

A

of domains on the central atom

17
Q

what is bond polarity determined by

A

electronegativity difference in the bond (dipole)

18
Q

how is molecule polarity determined

A

whether the dipoles cancel or if there is a resultant

19
Q

what is the dipole?

A

electronegativity inbalance, represented by arrows drawn towards more electronegative element
where electrons are found within the bond

20
Q

has a magnitude
has a value
has a direction
ex) velocity

A

vector

21
Q

if dipoles cancel, you have a ______ bond

how do dipoles cancel

A

nonpolar

same magnitude, towards or away from each other

22
Q

how can you tell if a bond is polar

A

polar bonds have at least one of these two characteristics
one or more lone pairs on center atom (dipoles will angle)
if you have different atoms connected to your center (different electronegativities)

23
Q

double bonds only exist in ___

A

planes