Flashcards in Chemistry 102 Deck (18):
a unifying principle that explains a body of facts and/or those laws that are based on them
the study of matter and the changes it undergoes
anything that occupies space and has mass
the push/pull on an object
What are the four fundamental forces?
2. electromagnetic force
3. weak nuclear force
4. strong nuclear force
What are the two classifications of matter?
a combination of two or more substances in which the substances retain their distinct identities
matter that has a definite or constant composition and distinct properties
Define Homogeneous Mixtures
mixtures in which the composition of the mixture is the same throughout (aka a solution)
Define Heterogeneous Mixtures
mixtures in which the composition of the mixture is not uniform throughout
a substance composed of two or more elements chemically united in fixed proportions
a substance that cannot be separated into simpler substances by chemical means
What is a physical property?
a property that can be observed without changing the matter (ex. length & mass)
What is a chemical property?
a property that can be observed ONLY through a change in the matter (ex. flammability & ionization)
What is an intensive property?
a property that does not depend on the amount of the substance (ex. boiling point & melting point)
What is an extensive property?
a property that depends of the amount of the substance (ex. mass & volume)
What is a macroscopic property?
a property of bulk (something you can measure in the real world like length or mass)