 So, let's try this one. It says write the chemical formula for the following molecule, and it gives you lysine and amino acid with six carbons, fourteen hydrogens, two nitrogens, and two oxygens. So let's write that information down too. So, six carbons, fourteen hydrogens, two nitrogens, and two oxygens. Okay, so remember, whenever you're running the molecular formula for these molecules, you don't want to write it like this or any other weird way. It's just you're going to connect all these atoms in a row with these numbers here being subscripts behind each of the atoms, okay? And if there is only one, this one doesn't have it. But if it was like oxygen only one, we wouldn't put that subscript, okay? So let's do this one. So remember, what did I say? So you put the atoms and then the number as a subscript, okay? So C14, H14, like that, and two. So don't write them as big numbers. Don't write them in front, okay? They have to be below as a subscript and behind the actual letter that they are indicating how many atoms are in that molecule. Any questions on this one? No. Okay, good.