Particles in Pure Substances and Mixtures Flashcards
1
Q
What are pure substances?
A
forms of matter that have definite chemical composition
2
Q
what are elements?
A
substances made up of only 1 type of atom.
3
Q
what are compounds?
A
substances made up of more than one type of atom.
4
Q
what are mixtures?
A
made up of 2 or more pure substances that are physically combined.
5
Q
monatomic element?
A
1 atom 1 element
6
Q
diatomic element?
A
2 atoms 1 element
7
Q
compound?
A
2 atoms 2 elements
8
Q
what are homogeneous mixtures?
A
uniform appearance and composition, distributed evenly
9
Q
what are heterogeneous mixtures?
A
components are visibly distinguishable, not distributed evenly
