L2 Alkanes Flashcards
what is alkanes?
saturated hydrocarbon that have at least single bond between carbons
what is the smallest member of alkanes?
methane CH4
what does -ane suffix mean?
that it has a single bond
ethane has how many carbons?
2 carbons
what do we call a compound containing six carbons?
hexane
how many carbons does pentane have?
5 carbons
how many carbons does octane, decane, butane have?
octane - 8 carbons
decane - 10 carbons
butane - 4 carbons
how many carbons does nonane and heptane has?
nonane - 9 carbons
heptane - 7 corbons
a compound that has 1 - carbon and and 3 - carbons :
methane - 1 carbon
propane - 3 carbons
what is the formula of alkanes?
CnH2n+2
what is the repeating unit in alkanes series?
CH2
what is cycloalkanes?
cyclic hydrocarbons (hydrocarbon ring) that contains at least one single bond
what are the physical properties of alkanes?
1- nonpolar
2- low boiling and melting point
3- immiscible with water
chemical properties of alkanes and why?
low reactivity - because alkanes are nonpolar thus have no charge so they have little attraction to ions and because the C-C , C-H bonds are strong
why alkanes has low melting and boiling point?
because of the weak intermolecular attraction between alkanes molecules
