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Bikarbonaattip, also known as sodium bicarbonate or baking soda, is a chemical compound with the formula NaHCO₃. It is a white crystalline solid that is soluble in water. Bikarbonaattip is a salt of a strong base (sodium hydroxide) and a weak acid (carbonic acid). This property makes it a weak base itself.

In its solid form, bikarbonaattip is a fine white powder. When dissolved in water, it forms an alkaline solution. A key characteristic of bikarbonaattip is its ability to react with acids, producing carbon dioxide gas, water, and a salt. This reaction is often observed when baking soda is mixed with acidic ingredients like vinegar or lemon juice, causing fizzing.

Bikarbonaattip has a wide range of applications. It is commonly used in cooking and baking as a leavening agent. When heated or combined with an acid, it releases carbon dioxide, which causes doughs and batters to rise. It is also found in many household cleaning products due to its mild abrasive and deodorizing properties. Furthermore, bikarbonaattip is used in antacids to neutralize stomach acid and in some personal care products. Its ability to buffer pH changes is also utilized in various industrial and laboratory settings.