chapter 1: notes and definitions Flashcards
basics of chem, atoms, molecules, and compounds, periodic table of elements, characteristics of matter
macroscopic domain
the realm of everyday things that are large enough to be sensed directly by human sight or touch
microscopic domain
symbolic domain
contains the specialized language used to represent components of the macroscopic and microscopic domains
matter
anything occupying space and having mass
atom
smallest part of an element that is still an element
molecule
two or more atoms joined by chemical bonds and acting as a unit
four states of matter
solid, liquid, gas, plasma
solid
rigid with fixed volume and shape
liquid
fixed volume that assumes shape of container
gas
no fixed volume or shape, fills space of container
extensive property
property that depends on the amount of matter
intensive property
property that is independent of the amount of matter
mass
measure of the amount of matter in an object
weight
the force that gravity exerts on an object
element
pure substance that cannot be broken down into simpler substances by chemical changes