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.
Definition: An error in reasoning that renders an argument invalid. A fallacious argument is a defective argument, says Michael F. Goodman, and a fallacy is the defect in the argument itself. .