00:01
We're going to write out the different elements that are found in objects that exist in our world today.
00:08
So, for instance, something that's on our table, right? table salt has the connotation of sodium chloride, right? and sodium chloride is made up of sodium, as we see here, and chloride from the cl.
00:37
We also have plaster casts.
00:43
If you break a bone or something like that, then plaster clasts are made up of calcium sulfate, which is calcium s .o .4.
00:57
So there's three elements in calcium sulfate.
01:00
We have calcium denoted by the ca.
01:09
We have sulfate, i mean, sorry, sulfur, which is our s there.
01:21
And then, we have oxygen, and that is our o in calcium sulfate.
01:35
We're also going to take a look at demerol, which is a pain medication, and this has a really long list of elements.
01:47
We have c -15 -h -22, chloride, n -o -2.
02:06
So we have a few different components here.
02:11
We have carbon, and we see that here represented by the c, we have 15 carbons.
02:23
We also have hydrogen, which is represented by our h.
02:31
We have 22 hydrogens...