Unit 2 Flashcards
Definition of homologous series
A family of compound with the same general formula and similar chemical properties
General Formula for alkanes
CnH2n+2
General formula for cycloalkanes
CnH2n
General formula for alkenes
CnH2n
Definition of isomer
a compound with the same molecular formula but different structural formula
Bromine goes from orange to colourless when a ______ is present
alkene
what is the common name for ethanoic acid
vinegar
functional group of carboxyl acids
carboxyl
functional group of alcohol
hydroxyl
three uses for alcohols
recreation (drinking)
fuel
disinfectant
alcohol’s pH
7 - neutral substances
general formula for alcohols
CnH2n+1
what must oxygen always be attached to in a homologous series
the carbon
how must under 14% of alcohol be made
fermentation
how must above 14% alcohols be made
distillation
Alcohols are soluble in water. True or False?
True
The shorter the carbon chain, the more or less soluble alcohol is in water?
shorter carbon chain = more soluble
what are the units for Eh
kilojoules (Kj)
what are the units for specific heat capacity (c)
Kj-1 c-1
what are the units for mass (m)
kg
what are the units for change in temperature (🔺T )
degrees celsius (°c)
do carboxylic acids have a pH above or below 7
below
what does combustion mean
burning in oxygen
alkanes - single or double bonds?
single
alkenes - single or double bonds?
double
cycloalkanes - single or double bonds?
single
alkanes - saturated or unsaturated?
saturated
alkenes - saturated or unsaturated?
unsaturated
cycloalkanes - saturated or unsaturated?
saturated
what are alkanes used for
gas and fuels
