(a) The equation for this reaction is (1)A C 2 H 6 + Cl 2 oC 2 H 5 Cl + HCl B C 2 H 6 + Cl 2 oC 2 H 4 Cl 2 + H 2 C C 2 H 6 + Cl 2 o2CH 3 Cl D C 2 H 4 + Cl 2 oC 2 H 4 Cl 2 (b) The role of the UV radiation in the reaction is to (1)A break the Cl Cl bond forming Clâ¢ free radicals.i) Write a chemical equation to show how the presence of carbon dioxide in water results in the formation of carbonic acid. State symbols are not required. (1) (ii) Write the ionic equation to show how acids react with carbonates.State symbols are not required.
A comet is an icy small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process called outgassing. This produces a visible atmosphere or coma, and sometimes also a tail. These phenomena are due to the effects of solar radiation and the solar wind acting upon the nucleus of the comet. Comet nuclei range from a few hundred metres to tens of kilometres across and are composed of loose collections of ice, dust, and small rocky particles. The coma may be up
Comet (cleanser) Comet is a powdered cleaning product and brand of related cleansing products. The brand was introduced in 1956 by Procter & Gamble, and was sold to Prestige Brands in 2001. Comet is now sold in North America and distributed in the United States by Prestige Brands.