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.Know More
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 in Atoms & Molecules
"Sleeping gas" is a generic term that is used to describe the incapacitating effects of a general anesthetic in vapor form, such as nitrous oxide, sevoflurane, isoflurane, desflurane and Xenon. These chemicals are volatile, which means that they readily change state from liquid to gas at normal temperatures.Full Answer >
The molar volume of hydrogen gas at standard temperature and pressure is 22.4 liters. Standard temperature and pressure means a temperature of 0 degrees Celsius and a pressure of 1 atmosphere.Full Answer >
The chemistry expression "noble gas configuration" refers to the electron configuration of an element. The noble gas configuration for neon is denoted as 1s2 2s2 2p6.Full Answer >
Helium is a noble gas with two electrons. This element is classified as a noble gas because it tends not to form compounds with other substances.Full Answer >