Water vapor.
Hydrocarbon is an organic compound which is entirely made up of hydrogen and carbon. Hydrocarbons are the main source of the world’s electric energy and heat because of the energy produced when they are burned.
It depends upon the subsance being burned. Normally, the substance would end being some sort of oxide (O2 molecule being attached to the base molecule of what is being burned).
waterWater.2H2(g) + O2(g) --> 2H2O(g)
Hydrogen is the chemical element with atomic number 1, symbol H. In 1783 it was given its name when it was discovered that water is produced when hydrogen is burned.
The combustion heat of hydrogeh (HHV) for 1 g is 141,8 kJ.
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Technically, carbon is not produced when something is burned. Carbon dioxide is produced. And only if the substance being burned contains carbon compounds. Burning separates the carbon from the other elements in the compound and combines it with oxygen to produce carbon dioxide.
The combustion of hydrogen requires oxygen, which is supplied by the surrounding air. When hydrogen is combusted, it reacts with oxygen in the equation: 2H2 + O2 --> 2H2O with water (H2O) being the product
hydrocarbons( carbon and hydrogen)
In 1671, Robert Boyle discovered and described the reaction between iron filings and dilute acids, which results in the production of hydrogen gas. In 1766, Henry Cavendish was the first to recognize hydrogen gas as a discrete substance, by identifying the gas from a metal-acid reaction as "flammable air" and further finding in 1781 that the gas produces water when burned. He is usually given credit for its discovery as an element. In 1783, Antoine Lavoisier gave the element the name hydrogen when he and Laplace reproduced Cavendish's finding that water is produced when hydrogen is burned. Hydrogen was liquefied for the first time by James Dewar in 1898 by using regenerative cooling and his invention, the vacuum flask. He produced solid hydrogen the next year.
Hydrogen combines with oxygen when burned, forming H2O (water).
Henry Cavendish, a young English chemist, discovered that hydrogen is a separate substance in 1766. It was also discovered that hydrogen is found naturally in the atmosphere, and when hydrogen is burned it produces water vapor