Hydrocarbons Are Organic Compounds Containing Only Hydrogen and Carbon

1 Hydrocarbons Are Organic Compounds Containing Only Hydrogen and Carbon 

Alkanes have the general formula CJl2n+2, where n is a positive integer (n = 1, 2, 3,. ..). They contain only C—Halso known as saturated hydrocarbon s they comain me maximum number of hydrogen atoms that can bond with the number of carbon atoms present. 

The simplest alkane (that is, with n = 1) is methane (CH4), which, in addition to several natural sources, is a natural product of the anaerobic bacterial decomposition of vegetable matter under water. Because it was first collected in marshes, methane became known as marsh gas. A rather improbable but proven source of methane is termites. When these voracious insects consume wood, the microorganisms that inhabit their digestive system break down cellulose (the major component of wood) into methane, carbon dioxide, and other compounds. It is estimated that termites produce 170 million tons of methane annually Methane is also produced in some sewage treattnent processes. Commercially, methane is obtained from natural gas. 

The nomenclature of alkanes and all other organic compounds is based on the recommendations of the International Union of Pure and Applied Chemistry (lUPAC). The first four alkanes (methane, ethane, propane, and butane) have nonsystanatic names. As Table 16.1 shows, the number of carbon atoms is reflected in the Greek prefixes for the alkanes containing 5 to 10 carbons. 

Name of Hydrocarbon Moiecuiar Formuia Carbon Atoms Melting Point (°C) Boiling Point (°C) 

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Hydrocarbons - An organic compound containing only hydrogen and carbon. The simplest hydrocarbons are gases at ordinary temperatures but with increasing molecular weight, they change to the liquid form and finally, to the solid state. They form the principal constituents of petroleum and natural gas. 

Ethylene and terpenes, which were discussed in ihe preceding section, are hydrocarbons, organic compounds containing only hydrogen and carbon. The major classes of hydrocarbons are alkanes (formerly called paraffins), such as 2,2,3-trimethylbutane ... 

The number of known organic compounds totals into the millions. Of these compounds, the simplest types are those which contain only hydrogen and carbon atoms. These are known as hydrocarbons. Because of the number and variety of hydrocarbons that can exist, some means of classification is necessary. 

HYDROCARBONS Organic compounds that contain only hydrogen and carbon. The major sources of hydrocarbons in the atmosphere are vehicle emissions (unburned fuel) and gas leaks. Contributes to acid rain. 

The simplest organic compounds are the hydrocarbons, which contain only the elements carbon and hydrogen. How many different compounds do you think it is possible to make from two elements You might guess one, or maybe a few more, say 10 or 12. Actually, thousands of hydrocarbons are known, each containing only the elements carbon and hydrogen. 

A combustion reaction occurs when a hydrocarbon, which is an organic compound that contains only hydrogen and carbon, reacts with oxygen to produce water and carbon dioxide. In some ways, combustion reactions are the easiest of the types of chemical reactions to identify, because oxygen is always a reactant and the products are always carbon dioxide and water. The general form for a combustion reaction is shown here hydrocarbon + oxygen carbon dioxide + water... 

The simplest organic compounds contain only hydrogen atoms bonded to the carbon skeleton and are known as hydrocarbons, for example methane, the main... 

All organic compounds are derived from a group of compounds known as hydrocarbons because they are made up of only hydrogen and carbon. On the basis of structure, hydrocarbons are divided into two main classes—ahphatic and aromatic. Aliphatic hydrocarbons do not contain the benzene group, or the benzene ring, whereas aromatic hydrocarbons contain one or more benzene rings. 

Hydrocarbons, the simplest of all organic compounds, contain only two elements, carbon and hydrogen. Saturated hydrocarbons or alkanes are organic compounds in which carbon is bonded to four other atoms by single bonds there are no double or triple bonds in the molecule. Unsaturated hydrocarbons, studied later, are called alkenes, alkynes, and aromatics and contain double bonds, triple bonds, or six-carbon rings, as shown in Figure 1.7. 

Look again at the molecules above. The first two contain only hydrogen and carbon, so the compounds are called hydrocarbons. Hydrocarbons are organic compounds that contain only hydrogen and carbon. 

Hydrocarbons are the simplest organic compounds, containing only carbon and hydrogen. There are three families of hydrocarbons. The alkanes have only single bonds and are said to be saturated. Alkanes are very stable and generally unreactive. Alkenes and alkynes have multiple bonds between two adjacent carbon atoms and are said to be unsaturated. This unsaturation makes alkenes and alkynes more reactive than alkanes. 

Combustion reactions are redox reactions in which the chemical species rapidly combines with oxygen and usually emits heat and light. Reactions of this type are extremely important in our society as the sources of heat energy. Complete combustion of carbon yields carbon dioxide, and complete combustion of hydrogen yields water. The complete combustion of hydrocarbons, organic compounds containing only carbon and hydrogen, yields carbon dioxide and water ... 

Other important natural sources of organic chemicals are the so-called fossil fuels - natural gas, petroleum, and coal - all deposited in the earth from the decay of plant and animal remains, and containing thousands of degradation products. Most of these are simple compounds containing only carbon and hydrogen (technically and even reasonably known as hydrocarbons). Natural gas is relatively simple... 

Hydrocarbons are organic compounds that contain carbon and hydrogen only. 

Many thousands of carbon compounds contain only the elements carbon and hydrogen. These compounds, the hydrocarbons, are associated with plant and animal life, which is why the study of them is a part of organic chemistry. Since petroleum was formed from ancient living matter, it is no... 

The alkane, alkene, alkyne, and aromatic families are members of a larger grouping referred to as hydrocarbons. Hydrocarbons are organic compounds that contain only carbon and hydrogen. The alkenes, alkynes, and aromatics are unsaturated hydrocarbons since they contain carbon-carbon multiple bonds. The alkanes are referred to as saturated hydrocarbons since they do not contain carbon-carbon multiple bonds, only carbon-carbon single bonds. 

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