Test 5 - Hydrocarbon Compounds Flashcards
Alkanes
Chains of single bonded carbon atoms (branched or straight)
Homologous series
A group of compounds with a constant increment of change in a molecular formula
Branched chain Alkane
Occurs when an atom or group of atoms (substituient) replaces H on straight
Hydrocarbon substituient
Called alkyl group
Think “yl” substituient
Alkanes are considered to be __________ compounds because each carbon atom is bonded to the
Maximum number of hydrogen atoms
Alkanes are ________ molecules
Non polar
Alkanes with a low molar mass then to be
Gasses
Alkanes with a high molar mass tend to be
Liquids
Two non polar compounds will
Form a solution
Alkenes
Hydrocarbon compounds with at least one carbon to carbon double bond
Isomers
Compounds with the same molecular formula but different structural formulas
Geometric isomers
Have atoms in the same order but differ in the same order but differ in the orientation around a double bond
Stereoisomers (optical isomers)
Molecules in which the atoms are joined in the same order but the positions of atoms in space are different
Optical isomer
Occurs when a carbon atom has four different atoms or groups attached. That carbon is called “chiral” or “asymmetric”.
Hydrocarbon rings are called
Cyclic hydrocarbons