00:02
Okay, so to make our chart of physical and chemical properties, i'm actually going to flip the question for us right now, and i'm going to first list some properties of each, and then go back and think about what those properties have in common and define physical and chemical properties at the end.
00:26
So a couple of physical properties would be things like size, shape, density, freezing point, boiling point, mass, length, volume, etc.
00:55
Some chemical properties would be things like reactivity with water, flammability, stability, or volatility.
01:21
There are some other chemical properties, but really they all come back to this reactivity idea.
01:27
So what do these all have in common? physical properties, we can observe them without changing, but chemical properties we cannot, so we can only observe by changing them.
01:56
So through a reaction, which i'm going to abbreviate rxn...