2.2 changes and properties Flashcards
physical changes
alters only physical state or appearance
chemical changes
alters composition of matter
physical property
property a substance displays without changing its composition
chemical property
property a substance displays only by changing its composition via a chemical change
malleability
physical property - able to be hammered or pressed permanently out of shape without breaking or cracking
density
physical property
texture
physical property
reactivity
chemical property
combustibility
able to catch fire and burn easily
flammability
easily set on fire
phase changes are
physical changes
freezing point
liquid to solid
melting point
solid to liquid
boiling point
liquid to gas
condensation point
gas to liquid