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Topic 14

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

What are sigma bonds?

Back (Answer)

The head to head overlap of atomic orbitals with its electron density concentrated along the internuclear axis

#2
Front (Question)

What are pi bonds?

Back (Answer)

The sideways overlap of p orbitals with its electron density concentrated above and below the internuclear axis

#3
Front (Question)

If there is a double bond how many sigma and pi bonds does it have?

Back (Answer)

1 sigma, 1 pi

#4
Front (Question)

If there is a triple bond how many sigma and pi bonds does it have?

Back (Answer)

1 sigma 2 pi

#5
Front (Question)

Draw the structure of NO3-

Back (Answer)

#6
Front (Question)

Draw the structure of CO32-

Back (Answer)

#7
Front (Question)

Draw the structure of SO42-

Back (Answer)

#8
Front (Question)

Draw the structure of ozone

Back (Answer)

#9
Front (Question)

What are resonance structures?

Back (Answer)

Structures where there is more than one place for the multiple bond

#10
Front (Question)

What does formal charge tell you?

Back (Answer)

• Which lewis structure is preferred when more than one is possible • the charge that an atom would have if all the atoms had the same electronegativity

#11
Front (Question)

Which formal change value is the best?

Back (Answer)

The one closest to 0

#12
Front (Question)

Formula charge formula

Back (Answer)

FC= VE-NE-1/2 BE VE= valence electrons NE= non bonding electrons BE= bonding electrons

#13
Front (Question)

What is the formula charge for ions?

Back (Answer)

It is always the overall charge on the ion

#14
Front (Question)

VSPER theory

Back (Answer)

• predicts the shape of the molecules ( MDG) • electron pairs repel each other as far apart as possible • EDG = the number of electron domains

#15
Front (Question)

5 electron domains ( 5 bonding domains, 0 lone)

Back (Answer)

• trigonal bipyramidal - 90 degrees / 120

#16
Front (Question)

5 electron domains ( 4 bonding domains , 1 lone)

Back (Answer)

• see saw - <90/<120

#17
Front (Question)

5 electron domains ( 3 bonding domains, 2 lone)

Back (Answer)

• T shaped - < 90

#18
Front (Question)

5 electron domains ( 2 bonding domains , 3 lone domains )

Back (Answer)

• linear - 180 degrees

#19
Front (Question)

6 electron domains ( 6 bonding domains , 0 lone)

Back (Answer)

• octahedral - 90 degrees

#20
Front (Question)

6 electron domains ( 5 bonding domains, 1 lone domain)

Back (Answer)

• square pyramidal - < 90

#21
Front (Question)

6 electron domains ( 4 bonding, 2 lone)

Back (Answer)

• square plannar - 90 degrees

#22
Front (Question)

Equations for destruction of ozone by NO

Back (Answer)

NO. + O3 = NO2. + O2 NO2. + O3 = NO. + 2O2

#23
Front (Question)

Equations for the destruction of ozone for CFCs

Back (Answer)

CCl2F2 – CClF2. + Cl. ( by U.V.) Cl. + O3 = ClO. + Cl. ClO. + O. = Cl. + O2

#24
Front (Question)

Hybridisation

Back (Answer)