Structure and bonding

Hversu margar gildisrafeindir er súrefni með?

How many valence electrons does oxygen have?

• 4

• 5

• 6

• 7

Hversu mörg efnatengi vill súrefni almennt mynda?

How many bonds does oxygen generally want to form?

• 1

• 2

• 3

• 4

Hversu mörg rafeindapör eru eftir á súrefni í vatni (H₂O)?

How many lone pairs does the oxygen atom in water have (H₂O)?

• 1

• 2

• 3

• 4

Hver er svigrúmablöndun kolefnanna í acetonítríl?

What is the hybridization of the carbons in acetonitrile?

• A: sp2, B: sp3

• A: sp3, B: sp2

• A: sp, B: sp3

• A: sp, B: sp2

Hvað er köfnunarefnið með mörg rafeindapör í acetonitrile?

How many lone pairs does the nitrogen have in acetonitrile?

• engin (none)

• 1

• 2

• 3

Hver er lögun acetonítríls út frá miðkolefninu?

What is the shape of acetonitrile from the center carbon?

• línuleg (linear)

• beygt (bent)

• flatur þríhyrningur / trigonal planar

• ferflötungur / tetrahedral

Hvort eru sigma eða pí tengi almennt sterkari?

Which is stronger in general, sigma or pi bonds?

• sigma

• pí

• bæði jafnsterk (both are equally strong)

Hvað eru mörg H tengd kolefninu sem örin bendir á?

How many H are connected to the carbon that the arrow points towards?

• 0

• 1

• 2

• 3

Hvað eru mörg H tengd kolefninu sem örin bendir á?

How many H are connected to the carbon that the arrow points towards?

• 0

• 1

• 2

• 3

Hver er efnaformúla eftirfarandi efnis?

What is the chemical formula of the compound below?

• C₅O

• C₄H₇O

• C₅H₁₂O

• C₅H₁₀O