Soda bicarbonate, commonly known as baking soda, is a white crystalline powder used primarily in cooking and baking. It acts as a leavening agent, helping dough rise by producing carbon dioxide gas when it reacts with acids, such as vinegar or lemon juice. This reaction creates bubbles that lighten and aerate baked goods, making them fluffy and tender. In addition to its culinary uses, soda bicarbonate has various applications in cleaning and personal care. It can neutralize odors, act as a gentle abrasive for scrubbing surfaces, and even be used in antacids to relieve heartburn. Its versatility makes it a staple in many households.