What is the chemical formula for Potassium Chloride?

The chemical formula for Potassium Chloride is KCl. This compound is made up of one potassium (K) ion and one chloride (Cl) ion. The formula reflects the 1:1 ratio of potassium to chloride, which is characteristic of ionic compounds where the positively charged potassium ion combines with the negatively charged chloride ion to form a neutral compound. This ionic bond is a fundamental concept in chemistry, as it illustrates how different elements can combine to create compounds.

The other choices represent different substances. LiCO3 denotes lithium carbonate, which consists of lithium, carbon, and oxygen. FeSO4 is iron(II) sulfate, containing iron, sulfur, and oxygen. Lastly, "Mg" refers to magnesium, an element on its own rather than a compound. Understanding the distinct chemical formulas helps clarify the differences between various compounds and elements, which is critical in the study of chemistry and medication administration.