elements and compounds Flashcards
(14 cards)
a compound has
2 or more different types of
atoms bonded together in a
regular arrangement.
a mixture has
Atoms or compounds of
different substances
combined but not
bonded to each other.
2 or more different types of
atoms bonded together in a
regular arrangement.
a compound
Atoms or compounds of
different substances
combined but not
bonded to each other.
a mixture
an element has
Only one type of atom.
only one type of atom
element
what is simple distillation used for?
Separating solids and
liquids.
Separating liquids with big
differences in boiling points.
what do the condensers do
what is fractional distillation used for
Fractional distillation separates
liquids that have different
boiling points.
what is chromatography used for?
It can be used to separate
soluble substances.
in chromatography, how can you identify which is more soluble
the highest in the paper and the least the lowest
what is the Rf value formula
distance travelled by solute / distance travelled by solvent
what does Rf stand for
retention factor
