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C8 (Gas tests (Oxygen (if oxygen is present a glowing splint will be be…
C8
Gas tests
Oxygen
if oxygen is present a glowing splint will be be lit in the right concentration of oxygen
Carbon dioxide
co2 gas into limewater will turn it cloudy
Chlorine
bleaches litmus paper turning it white
Hydrogen
a lit splint will make a squeaky pop when put in hydrogen
Chromotography
stationary phase
during the stationary phase equilibrium is formed
mobile phase
this moves past the stationary phase
anything that dissolves in moves with the mobile phase
in this phase they move faster
once they move the mixture dissolves
distance by substance/distance by solvent
Purity
Boiling and melting points will tell you how pure a substance is
pure substances melt and boil at at specific temperatures
test how pure substances are by getting specific vs actual
impurities will offset the temperatures and increase the range
Defined purity
when a pure substance is referred to it means nothing has been added to it
a pure substance has only one element in it hence why it is pure