4.1.2 alkanes Flashcards
1
Q
general formula
cycloalkanes
A
Cn H2n+2
Cn H2n
2
Q
sigma bond
A
joined to four other atoms by single covalent bond
3
Q
- have a 3D specific tetrahedonal shape bc….
- angkle of each bond approx
A
- repel each other equally
- 109.5
4
Q
as chain length increases, boiling point…
A
increases
5
Q
increased chain length —>
A
- greater surface area of contact
- stronger london forces
6
Q
branched isomers hv
more branching —>
A
lower boiling points
- less surface area of contact
- weaker london forces
7
Q
REASONS FOR LACK OF REACTIVITY:
. C-_ AND C-_ SIGMA BONDS ARE
. C-_ BONDS ARE POLAR
. THE __________ OF C AND H IS SO ______ THAT THE - BOND CAN ALSO BE CONSIDERED ______
A
. C,H
. C
. ELCTRONEGATIVITY, SIMILAR, C,H, NON POLAR