 Okay, so let's do another one of these problems, rank the following in order of increasing reactivity. So the fastest is number four, the best is number four. Solvent effects in an SN1E1 reaction. So we're looking at solvent effects. So what kind of solvent makes an SN1E1 go faster? Polar solvent. Okay, so which one of these is going to go the slowest? Which one is a non-polar solvent? Can't hear, sorry. C6H14, right? So is that going to be the fastest reaction or slowest? Slowest. Okay, so the slowest, what does it say? Increasing. So that's going to be number one. Okay, and which is the most polar out of these solvents? H2O. H2O, right? So why is H2O, so if this is the most polar, right? That's going to be number four. Why is H2O more polar than ethanol? Because you got the ethyl group, right? That ethyl group on one side of that oxygen, right? So this essentially looks like water if I cover that up, right? But this ethyl group here is non-polar. Whereas water, the whole molecule is polar itself, right? You can make hydrogen bonds with the whole thing. So in other words, this part of ethanol makes the whole molecule less polar than water, okay? So which one do you think would go faster than something that's got more non-polar character or something that has something that's really polar, solving that system that has something that's really polar with something that's kind of polar? Yeah, so which one would be faster? Or left or right? Right. The right one, okay? Questions on that one? Okay, good.