Coal formation begins with the decay of plants and animals in the absence of oxygen. Bacteria release oxygen and hydrogen and concentrate carbon. Impurities are removed over time, and the weight of sediment compresses th... More »

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The four stages in coal formation are peat, lignite, bituminous and anthracite. Each of these stages must be completed for coal to form. More »

Coal is not a mineral because it is organic, and minerals are inorganic. Minerals have a repeating crystalline structure and a homogeneous chemical profile. Coal has neither. It forms over millions of years from the comp... More »

Alpha decay happens when a radioactive particle decays into an alpha particle (helium-4 nucleus) and a new particle. The new particle has an atomic number that is two less than the original radioactive particle and an at... More »

Writing a beta decay equations involves denoting the emission of a beta particle as the loss of an electron. Beta decay involves a neutron decaying into a proton and an electron emission (beta particle); the atomic numbe... More »

www.reference.com Science Chemistry Chemical Equations

The chemical equation for the combustion of coal is C + O2 = CO2. In this equation, C represents the carbon in the coal, which reacts with air, represented by O2, to form carbon dioxide, or CO2. More »

A carbohydrate chain is a sequence that is made up of short units of organic compounds that are brought together to form long sugar chains. A carbohydrate is a large biological molecule consisting of carbon, hydrogen and... More »