1. The symbol for iron on the periodic table is "Fe" because it comes from the Latin word for iron, which is "Ferrum." In the periodic table, elements are often represented by symbols derived from their Latin names. For example, lead is "Pb" from the Latin word "Plumbum," and gold is "Au" from the Latin word "Aurum."
2. The name of stomach acid is hydrochloric acid (HCl). Hydrochloric acid plays a crucial role in the digestive process by breaking down food particles and killing harmful bacteria in the stomach. It is produced by special cells in the lining of the stomach known as parietal cells. Hydrochloric acid creates an acidic environment in the stomach, which is necessary for the activation of enzymes that help digest proteins and other nutrients.
