On April/0/5, 2004, a chlorine leakage accident occurred in Chongqing Tianyuan Chemical Plant, followed by an explosion accident of a chlorine storage tank, and the surrounding/0/50,000 people were evacuated urgently.
(1) chlorine is a yellow-green gas with a strong pungent smell. At the same temperature and pressure, chlorine gas is denser than air and can be dissolved in water. These descriptions are all about the physical properties of chlorine. Therefore, chlorine is a yellow-green gas with a strong pungent smell. At the same temperature and pressure, chlorine gas is denser than air and can be dissolved in water.
(2) Liquid chlorine volatilizes, changes from liquid to gas, expands rapidly, explodes in a limited space, and no new substances are generated, which is a physical change.
(3) The chemical equation of this reaction is Cl2+H2O-HCLO+HCl.
(4) According to the law of conservation of mass, the chemical formula of X is H2O. ..
(5) Because chlorine gas is denser than air and can react with water, self-help measures should be taken, such as running against the wind and covering your nose and mouth with a wet towel.
So fill in: run high against the wind and cover your nose and mouth with a wet towel.