An organic compound that contains only hydrogen and carbon In vehicle emissions, these are usually vapors created from incomplete combustion or from vaporization of liquid gasoline Emissions of hydrocarbons contribute to ground level ozone
(HC) An organic chemical compound consisting only of carbon and hydrogen atoms in the gaseous, liquid or solid phase (Greek hydor, water + Latin, carbo, charcoal)
Organic compound composed primarily of hydrogen and carbon atoms An example of a hydrocarbon is methane (CH4)
any of a vast number of compounds containing carbon and hydrogen in various combinations; found especially in fossil fuels Some of the hydrocarbon compounds are major air pollutants; they may be active participants in the photochemical process or affect health
An organic chemical compound of hydrogen and carbon in either the gaseous, liquid, or solid phase The molecular structure of hydrocarbon compounds varies from the simplest (e g , methane, a constituent of natural gas) to the very heavy and very complex
An organic chemical composed only of hydrogen and carbon Gaseous or volatile hydrocarbons are flammable
An organic chemical compound of hydrogen and carbon, called petroleum The molecular structure of hydrocarbon compounds varies from the simplet, methane (CH4), a constituent of natural gas, to the very heavy and very complex Octane, for example, a constituent of crude oil, is one of the heavier, more complex molecules