A chemical formula is a concise list of the elements in a compound and the ratios of these elements. To better understand what a chemical formula means, we must consider how an ionic compound is constructed from its ions.
A fallacy is an incorrect argument in logic and rhetoric. It gives a result which is not valid or lacks soundness. Fallacies are either formal fallacies or informal fallacies.
Lesson Summary. A logical fallacy is an argument that appears on the surface to be reasonable but in reality is weak or faulty and misleading. There are a few subcategories of fallacies: the structural fallacy, the verbal fallacy and the material fallacy (the last of which was the focus of this lesson). Logical fallacies are most often accidental or unintentional, based on a misinterpretation of information or the need for more evidence.