Chapter Two Notes

Types of Properties Extensive properties – depend on the amount of material in a substance – examples: mass and volume Intensive properties – does not depend on amount; depends on the type of matter involved – Examples: boiling point, freezing point

Scientific Theory and Law Theory – explanation for a large set of observations – tells you why it happens Law – description of an observation – tells you what happens – Example: law of gravity

Evidence of a Chemical Reaction Color change Temperature change Gas produced (bubbles) Solid forms (precipitate)