pure substances
Can elements be pure substances?
YES!!!
What are the forms of energy?
Kinetic
Potential
how many phases are there?
3!!
are phase changes physical changes?
YES!!!!
example of a pure substance.
H2O
how many different forms of energy are there?
two
what are the phases?
solid, liquid, gas,
a change in temperature.
Is a salad a pure substance?
NOOOOOOO
what is tempurture?
The average kinetic energy of a particle.
what are the atoms of a solid?
atoms of a solid are tightly packed together.
what is kinetic energy?
Moving energy
what are the atoms of a liquid.
Atoms of a liquid are lightly packed and free flowing. they fill up the space given.
How many different types of particles can be in a pure substance?
Only one type of particle can be in a pure substance.
what is potential energy?
Stored energy
what are the atoms of a gas.
atoms of a gas are not packed and bounce around the space it is in.