Classification of matter Flashcards
1
Q
Atom
A
the smallest unit of matter
2
Q
Molecule
A
Two or more atoms bound together by chemical bonding
3
Q
Element
A
a collection of atoms of one atom type only
4
Q
Compound
A
collections of different atom types
5
Q
Pure substance
A
collections of one identical molecule/atom
6
Q
Mixture
A
Collections of more than one atom or molecules
7
Q
Chemical bonds
A
attractive forces involving electrons
8
Q
Chemical change
A
is when new molecules are formed by reaction of other atoms or molecules
9
Q
Thermodynamics
A
chemical energy may be released as heat
10
Q
kinetics
A
Heating may also accelerate a chemical reaction.
