Ap chemistry online card

Separation of compounds to elements….

Chemical changes(reactions)

Separation of mixtures….

Physical Changes (evaporation, filtration, etc.)

Filtering separates mixtures based on…….

Particle size (Large《 trapped on filter paper, soluble goes through).

Distillation separates mixture based on…..

Boiling Point

Chromatography separates mixtures based on….

Different in polarity.

Paper chromatography

Component that is most similar in polarity to the “mobile phase” moves up the farthest.

Mass number

Protons + neutrons (Protons can get from PTE, calculate neutrons by subtracting)

Mass is _____ during chemical and physical changes.

Conserved (stored)

The % composition by mass pure compound…..

Does not change.

Reading volume of a liquid in a container…..

Estimate by reading one digit past the certain markings.