Hey there everybody this is the last and final video in our types of reactions series and we're going to do net ionic disassociation reactions. So this is where an ionic compound will dissolve in water and it breaks down to the ions that make up that compound. So let's start with sodium chloride, again just table salt, and let's go look at our periodic table. Now our periodic table shows that sodium is in the first column and so it has a plus one charge and we know that chlorine is in the seventh-teenth column. So it wants to gain an electron so it has a minus one charge. So then when we go back to our question, we got NACO. So we said before that this is a plus one charge and that this has a minus one charge. So it's going to create sodium plus ions which are dissolved in water so it's aqueous plus chlorine ions. Again dissolved in water so it's aqueous. So whenever you see these ions that make up a solid, you know that this is a net ionic disassociation reaction. So let's do aluminum hydroxide. Now aluminum, we can see that this has a three on it. So that means that we know a hydroxide ion has a minus one charge but there's three of them. So that's minus three. So then we know that the aluminum must have a plus three charge in the state. So when we go to our reaction, we have aluminum with a plus three charge and it's aqueous form. And then we have three hydroxide atoms. Our molecules I guess. Again dissolved in water. So that's how you do a net ionic disassociation reaction. Good luck and thanks for watching.