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By definition raw fossil fuels are not required to be purely composed of hydrocarbons.

A hydrocarbon is by definition, just hydrogen and carbon; however in fossil fuels impurities are present that are often removed in refining. Some forms of fossil fuels have little or no hydrogen present (Coal for example is nearly all Carbon). It is not uncommon to find oxygen, nitrogen, sulfur, and other mineral and chemical components in a fossil fuel outside of pure hydrocarbons. Refineries are designed to take raw fossil fuels (oil for example) and adjust those various components to meet some requirement. A good example is in gasoline and diesel fuels where octane, heptane, butane and sulfur levels can be controlled.

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What two elements are fossil fuels made up of?

carbon and hydrogen


What element are fossil fuels mostly made up of?

Fossil fuels are mostly made up of carbon, along with varying amounts of hydrogen, sulfur, and other elements.


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As fossil fuels are made up of Carbon and Hydrogen. This burns in oxygen (in air) to form Carbon dioxide and Water, so the carbon dioxide is released into the air


Halogens are the basis of all fossil fuels?

Halogens are not the basis of all fossil fuels. Fossil fuels are primarily composed of hydrocarbons, which are compounds made of hydrogen and carbon. Halogens like chlorine, bromine, and fluorine are not key components of fossil fuels.


How do fossil fuels release carbon dioxide into the atmosphere for 6th graders?

When fossil fuels like coal, oil, and natural gas are burned for energy, they release carbon dioxide into the air. This happens because these fuels are made up of carbon and hydrogen atoms, and when they are burned, the carbon combines with oxygen to form carbon dioxide, which is then released into the atmosphere. This process is called combustion.


Is it true that halogens are the basis of all fossil fuels?

No, halogens are not the basis of all fossil fuels. Fossil fuels are primarily made up of hydrocarbons, which are compounds of hydrogen and carbon. Halogens, like chlorine and fluorine, are not typically found in significant amounts in fossil fuels.


Are halogens the basis for all fossil fuels?

No, halogens are not the basis for all fossil fuels. Fossil fuels primarily consist of hydrocarbons, which are compounds made of hydrogen and carbon. Halogens, such as chlorine, fluorine, bromine, and iodine, do not play a significant role in the formation of fossil fuels.


What is all fossil fuels made of?

Fossil fuels are made of the remains of ancient plants and animals that were buried and compressed over millions of years. They primarily consist of carbon and hydrogen, along with smaller amounts of sulfur, nitrogen, and other elements. When burned, fossil fuels release energy in the form of heat, which is used for electricity generation, transportation, and other purposes.


Are nuclear fuels made of carbon and hydrogen atoms?

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How do fossils fuel release carbon dioxide into the atmosphere?

As fossil fuels are made up of Carbon and Hydrogen. This burns in oxygen (in air) to form Carbon dioxide and Water, so the carbon dioxide is released into the air


What fuels are fossil fuels?

Fossil fuels are primarily composed of hydrocarbons, which are molecules made up of hydrogen and carbon atoms. The main types of fossil fuels include coal, oil, and natural gas, all of which were formed from the remains of ancient plants and animals that underwent geological processes over millions of years.


Fossil fuels are made up of compounds called what?

Fossil fuels are made up of compounds called hydrocarbons, which are organic molecules composed of hydrogen and carbon atoms. These hydrocarbons include substances like methane, propane, and gasoline, which are extracted from minerals formed from ancient organic material.