SC22a Alkanes and Alkenes Flashcards
what are the alkanes in order?
methane, ethane, propane, butane
what are the molecular formulas of methane and ethane?
methane, CH₄
ethane, C₂H₆
what are the molecular formulas of propane and butane?
propane, C₃H₈
butane, C₄H₁₀
structural formula of methane?
1 carbon joined to 4 hydrogens using single bonds
structural formula of ethane?
2 carbons joined using single bonds to 6 hydrogens
structural formula of propane?
3 carbons joined using single bonds to 8 hydrogens
structural formula of butane?
4 carbons joined using single bonds to 10 hydrogens
saturated hydrocarbon?
hydrocarbon is a compound that contains carbon and hydrogen only
a saturated hydrocarbon contains only single bonds between the carbon atoms in a chain
general formula of alkanes?
CₙH₂ₙ₊₂
what are the alkenes in order?
ethene, propene, butene (but-1-ene and but-2-ene)
molecular formula of ethene, propene and butene?
ethene, C₂H₄
propene, C₃H₆
butene, C₄H₈
structural formula of ethene?
H H
C=C
H H
structural formula of propene?
H H H
H-C-C=C
H H
structural formula of butene?
H H H H
H-C-C-C=C
H H H
what is the difference between but-1-ene and but-2-ene?
the double bond in but-1-ene is between the first two carbons or the last two carbons whilst but-2-ene has the double bond between the middle two carbons
