1alkane + halogen gas
haloalkane
UV light
substitution reaction
substitutes one halogen at a time
2alkane, alkene or alcohol + excess oxygen
CO2 + H2O
complete combustion
CO + H2O
incomplete combustion
3haloalkane + OH-
alcohol + salt
KOH or NaOH
no catalyst
substitution
4haloalkane + NH3
amine + hydrogen halide
no catalyst
substitution
5haloalkane + H2O
alcohol + hydrogen halide
catalyst (AgNO3) or heat
substitution
6alkene + H2
alkane
solid Ni or Pt catalyst
addition/hydrogenation reaction
7alkene + halogen gas/liquid
dihaloalkane
no catalyst
addition
8alkene + hydrogen halide
chloroalkane
no catalyst
can form different isomers
addition
9alkene + H2O
alcohol
heat (300°C) + H3PO4
favours secondary/tertiary alcohols over primary
addition/hydration reactions
10oxidation of alcohols
tertiary alcohol > nothing (can't be oxidised)
secondary alcohol > ketone
primary alcohol > aldehyde > carboxylic acid
H+/Cr2O7^2- or MnO4^- oxidants
can change colours based on oxidation state
11alcohol + carboxylic acid
ester + H2O
concentrated H2SO4 + heat
condensation reaction - esterification
12ester + H2O
dilute acid: alcohol + carboxylic acid
dilute base: alcohol + alkanoate (+acid: carboxylic acid)
13triglyceride + alcohol
fatty esters (biodiesel if using methanol) + glycerol
KOH catalyst
transesterification
14yield
actual mass of product obtained/theoretical mass of product obtained
use limiting reagent
15atom economy
molar mass of useful products/molar mass of all reactants/all products
16green chem principles
use renewable feedstocks
use catalysts
designing safer chemicals
17types of polymers
homopolymers - one type of monomer
copolymers - two or more different polymers
18amino acid + amino acid
dipeptide (or polypeptide) + H2O - peptide links
condensation (polymerisation)
made in ribosomes
19two of glucose or galactose or fructose
di/polysaccharide + H2O - glycosidic link
CARBOHYDRATES: starch (plant energy) - amylose (straight)/amylpectin (branched), glycogen (very branched, animal energy), cellulose (plant cell walls)
20glycerol + fatty acids
triglyceride + 3 H2O
condensation
non-polar, insoluble in water
21protein + H2O
amino acids
catalysed by enzymes: protease
lab catalysed: 6M HCl, 100°C 24h
22carbohydate + H2O
disaccharides then monosaccharides
amylase breaks down polysaccharides, maltase breaks down disaccharides