1.2: Classifying Matter Flashcards
1
Q
Define Matter
A
anything that has mass & occupies space
2
Q
Define pure substances
A
Have constant & uniform composition (hydrogen)
3
Q
Define mixtures
A
composition is variable and may/may not be uniform
4
Q
Define heterogeneous mixtures
A
non-uniform and consist of many different matter
5
Q
Define homogeneous mixtures
A
uniform & consist of only one phase (water)
6
Q
Define elements
A
cannot be broken down into simpler chemical substances by any means (only 1 type of atom)
7
Q
Define entity
A
a general term that includes particles, atoms, ions, molecules, & formula units
8
Q
Define atom
A
smallest particle in an element
9
Q
Define compounds
A
contains atoms of more than 1 element combined to a fixed proportion
10
Q
Define chemical formula
A
consists of element symbols, and the amount entities
