Alright, guys, let's attempt to answer the question that was left at the bottom of the page. So here we say, determine the formula and simplest name of, Ah, hydrocarbon that contains one triple bond and nine carbons. So it has a triple bond, which is it means it's an Al Kaine, which means that the ending will be yien y any now here, and I'll kind with one. Triple bond has the formula of CNN H two n minus two, so c nine h, two times nine minus two means we have C nine h 16. So that's our formula. And then remember, we say If you have nine carbons, your prefix is non so the name will be No. Nine. No nine, okay or known in basically depends on higher. Professor pronounces it so different Professors pronounce it differently. So remember the differences between an al cane and all keen and an al kind. Remember, adding a pie bond removes two hydrogen, which affects the original formula of the Al Cane, which was C. N. H. Two n plus two. Now, now that we've seen these first three types of hydrocarbons, that leaves us with last type now before we go there. What we need to realize here is that if we have an Al Cane and all kind and and all keen that are not in a ring, so you're gonna say non cyclic hydrocarbons are referred to as Al Emphatic hydrocarbons. Okay, so that's a l i p h a t. I see Al Emphatic hydrocarbons. They're not in a ring. So once we start putting these in rings, they may become cyclic hydrocarbons. And the last major one that we're gonna look at are the aromatic hydrocarbons. We're gonna see what key feature do they have in common and what's so special about them. So move onto the next video, guys. Take a look and see what I talk about in terms off aromatic hydrocarbons.