Listen. In small cell lung cancer 'extensive stage', the average life expectancy is believed to be 9 to 12 months; and if the person does not opt for proper treatment, it can go down to 4 to 6 months.Advertisement.isten. In small cell lung cancer 'extensive stage', the average life expectancy is believed to be 9 to 12 months; and if the person does not opt for proper treatment, it can go down to 4 to 6 months.
The noun CHEMICAL DECOMPOSITION REACTION has 1 sense: 1. (chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance. Familiarity information: CHEMICAL DECOMPOSITION REACTION used as a noun is very rare. Dictionary entry details. â¢ CHEMICAL DECOMPOSITION REACTION (noun).
Definition: Chemical weathering (also known as decomposition or decay) is the breakdown of rock (weathering) by chemical mechanisms, the most important ones being carbonation, hydration, hydrolysis, oxidation, and ion exchange in solution.efinition: Chemical weathering (also known as decomposition or decay) is the breakdown of rock (weathering) by chemical mechanisms, the most important ones being carbonation, hydration, hydrolysis, oxidation, and ion exchange in solution.