This reaction ... of warm water. Rinse your mouth with this mixture once a day until the canker sore heals. Baking soda is a popular supplement among athletes, who also call it sodium bicarbonate.

Hard water can be softened by adding sodium carbonate (washing soda) or by passing the water through an ion-exchange column. Sodium carbonate, Na 2 CO 3, is also known as washing soda. It can ...