chapter 2 lesson 1 Flashcards
1
Q
the physical stuff that makes up the universe
A
matter
2
Q
the smallest individual particle of which matter is made
A
atom
3
Q
pure suubstances made of only one type of atom
A
element
4
Q
measure of the speed at which these particals move
A
temperature
5
Q
energys tendency to disperse
A
entropy
6
Q
changes that dont change the matters identity
A
physical change
7
Q
changes that completely transform the identity of the matter
A
chemical change
8
Q
stored chemical energy that holds two atoms together
A
bond
9
Q
a pure substance made of two or more elements chemically combined
A
compound
10
Q
the smallest part of a covalent compound
A
molecule
11
Q
Immaterial stuff that gets things done
A
energy
