00:02
Hi there.
00:03
When we are working in the lab and we are trying to determine if a chemical change has taken place, we often look for indicators of a chemical change.
00:17
These are things that suggest that a chemical change has taken place.
00:23
They aren't definitive, but they do strongly suggest it.
00:30
Okay, so one of these is a color change.
00:33
Again, we can have color changes that are not chemical changes, but a color change.
00:39
Does often accompany a chemical change.
00:44
All right.
00:44
Another one is bubbling.
00:48
Now, this doesn't mean that you heat something up to where it starts boiling.
00:52
This means you just mix two or more things together and you get bubbles released.
00:56
There's a gas being produced.
01:05
Okay...