|
|
2
|
a process that changes substances into new substances
|
3
|
a change in matter that does not affect its chemical composition
|
4
|
a chemical reaction that gives off heat energy
|
5
|
energy in the form of heat
|
6
|
a chemical reaction that absorbs heat energy from surroundings
|
7
|
a measure of the average kinetic energy of the atoms in a system, used to express thermal energy in degrees
|
8
|
matter with a fixed volume and shape
|
9
|
matter with a defined volume but no defined shape
|
|