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neutralisation reaction
displacement reaction
combustion reaction
metal + acid reaction
thermal decomposition reaction
precipitation reaction
reactants
products
balanced equation
state symbols
element
compound
mixture
atom
molecule
isotopes
relative atomic mass
relative abundance
endothermic
exothermic
isomer
alkene
activation energy
catalyst
hydrocarbon
homologous series
viscosity
volatile
complete combustion
incomplete combustion
cracking
crude oil
fractional distillation
independent variable
dependent variable
control variable
