Properties & Changes in Matter Extensive vs. Intensive Physical vs. Chemical

Extensive vs. Intensive Extensive Property depends on the amount of matter present Intensive Property depends on the identity of substance, not the amount

Extensive vs. Intensive Examples: boiling point volume mass density conductivity intensive extensive

Physical vs. Chemical Physical Property can be observed and measured without changing the identity of the substance Chemical Property can be observed by changing the identity of the substance

Physical vs. Chemical Examples: melting point flammable density magnetic tarnishes in air physical chemical

Physical vs. Chemical Physical Change changes the appearance of a substance without changing its identity properties remain the same Chemical Change changes the identity of a substance products have different properties

Physical vs. Chemical Signs of a Chemical Change change in color or odor formation of a gas (bubbling, fizzing) formation of a precipitate (a solid that separates from solution) change in light or heat

Physical vs. Chemical Examples: rusting iron dissolving in water burning a log melting ice grinding spices chemical physical