![]() Uses: Carbon dioxide is used in the productions of other most valuable products in the chemical industry. When the carbon dioxide is in contact with water, it forms carbonic acid, which could decrease the pH of water, causing a problem for aquatic life. Even when the solubility is low, this factor is very important for the water bodies in the planet. Carbon dioxide solubility in water is 1.45 g/L, and it is insoluble in ethanol and organic solvents.Ĭhemical properties: One of the most important reactions for the environment is the solubility of carbon dioxide in water. Carbon dioxide melting point is -56.6 ☌ and above this temperature, it sublimates. When concentrate, it can have a acidic odour. Physical properties: Carbon dioxide is a colourless and odourless gas. In a unnatural way, carbon dioxide can be produced from the combustion of fuels as methane, gasoline, kerosene, propane, minerals, rocks and coal. The carbon dioxide produced is used for the plants during the photosynthesis in a reverse process that produces oxygen. In the natural way, the carbon dioxide is produced during the respiration of organisms (plants, animals, fungi, bacteria):Ĭ 6H 12O 6 (s) + 6 O 2 (g) → 6 CO 2 (g) + 6 H 2O (l) + heat Preparation: Carbon dioxide is produced by the natural and unnatural ways. Carbon dioxide is found in the atmosphere and is also emitted by volcanoes, natural gas, crude oil and hot springs. All forms of live need respiration to survive, in this process the organisms inhale or capture oxygen from the environment and through different biochemical reactions it is produced CO 2 and water. It is the product of the respiration process. Occurrence: Carbon dioxide is largely found in nature. ![]() Its chemical structure can be written as below, in the common representations used for organic molecules. The two anions are bound to the carbon cation trough double bonds (pi bonds) making the carbon dioxide as a linear and rigid molecular. The molecule is formed by one carbon cation C 4+ and two oxygen anions O 2. Formula and structure: The carbon dioxide chemical formula is CO 2. ![]()
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