Carbon dioxide turns limewater milky. Limewater is an alkaline solution of calcium hydroxide. It reacts with carbon dioxide to form calcium carbonate, which is the reason limewater becomes milky.Continue Reading
Carbon dioxide, an odorless, non-flammable and colorless gas, is not reactive chemically. However, if the concentration of carbon dioxide is high, it can be an asphyxiant and a toxic gas that can cause irritation of the nose, throat and eyes.
When calcium carbonate or limestone is heated at temperatures of around 1,100 to 1,200 degrees Celsius, limestone can be quickly converted into carbon dioxide and lime or calcium oxide. When lime dissolves in water, it becomes slaked lime. Both slaked lime and lime are used for lessening sulfur emissions in gas-fired and coal power stations.Learn more about Atoms & Molecules
There are many examples of nonpolar molecules, including carbon dioxide. The linear arrangement of the two oxygen atoms on either side of a carbon atom creates a molecule that has the same number of electrons at either end.Full Answer >
Carbon dioxide, also known by the chemical formula CO2, has a higher density than the other gases found in air, which makes CO2 heavier than air. Air is composed of approximately 78 percent nitrogen, 21 percent oxygen, and less than 1 percent of other gases.Full Answer >
The chemical reaction between yeast and sugar produces ethanol and carbon dioxide. The balanced chemical equation for this reaction is glucose/sugar (C6H12O6) in the presence of the yeast enzyme zymase reacts to produce 2C2H5OH (ethanol) +2CO2 (carbon dioxide). This is the ethanol fermentation process used to make beer, wine and bread.Full Answer >
Burning candles mostly emit carbon dioxide and water vapor, which is a product of hydrogen and oxygen. Research has suggested that certain types of candles, such as the traditional paraffin candle, may also give off toxic chemicals such as toluene.Full Answer >