Hello again, and, welcome to my guide to chemical engineering! This is not the biggest field you can study for, but, as far as studies go, it is amongst the most interesting. This is where you will basically learn everything liquid and gas based in the world, from how to mix a knock out gas or that stuff that puts you out while people operate on you, to how to mix petrol into oil or even mix real medicine and food preservatives and stuff. That is the practical applications, and, while I don't think there is much room in these fields for 'fun,' other than it being where you get to fool around with nearly all those chemicals or elements on that table, in various mixtures and stuff, it still is a lot of fun to study and become a chemist or something, a nice paying job if you will.

So, what is chemical engineering about? It is about mixing chemicals! This is where you learn how chemicals work and to a point a bit of physics too, mind you. It is also about anions and cations, polar opposites that attract things or acidify them - yes it is basically how quickly things dissolve or mix to form new things. This is also where the natural phenomenon is observed regarding effects on natural tissue, so it is a bit like medicine too.

~ Remember in medicine you study chemistry, physiology, biology and physics, basically.

Now, to properly understand all these things, the most important thing to understand is acidity measures how quickly - yes that stuff you learned in high school - things dissolve and become one with the mixture. This is usually down to a greater density or mass of liquid or gas mixing with a lesser mass of liquid or gas to dilute itself into a mixture that gives of both parts. For example, if you were to mix oil with liquid gold, the gold would dissolve the oil and the greater mass would prevail, not the greater amount, of course.