salt
saponification
saturated
science
scientific method
solid
solubility
solute
solution
solvent
specific gravity
specific heat
specific weight
spectrum
spin
spin quantum number (Ms)
spontaneous process
standard solution
standard temperature and pressure
state of matter
sterling silver
steroid
stock solution
stoichiometry
STP
strong acid
strong base
sublimation
supercooling
supernate
supersaturated
surfactant
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