Carbonic acid is a weak acid that is created when carbon dioxide (CO 2) is dissolved in water (H 2 O), resulting in the chemical formula H 2 CO 3. When the acid dissociates, or gives up a hydrogen ion, the resulting molecule is called a bicarbonate ion.Carbonic acid appears frequently in the natural world.It can be found in sodas, champagne, and blood. The acid even appears in rain. During the making of soda, carbon dioxide is dissolved in water.hen the acid dissociates, or gives up a hydrogen ion, the resulting molecule is called a bicarbonate ion. Carbonic acid appears frequently in the natural world. It can be found in sodas, champagne, and blood. The acid even appears in rain. During the making of soda, carbon dioxide is dissolved in water.
Australian money consists of banknotes and coins. Australian banknotes (called bills in countries such as the USA) are made of plastic in a manufacturing process pioneered in Australia. They come in denominations of $100, $50, $20, $10 and $5.
AUD-Australian Dollar. Australia, Dollar. The Australian Dollar is the currency of Australia. Our currency rankings show that the most popular Australia Dollar exchange rate is the AUD to GBP rate. The currency code for Dollars is AUD, and the currency symbol is $.