Why doesn’t water burn?
I think Water is formed as a result of the combustion of hydrogen. In simple words, water is what you get when you burn hydrogen. So, water doesn’t burn because, in a way, it has already burned.
You can think of water as the ash from burning hydrogen.
it's already given off as much energy as possible from reacting hydrogen with oxygen.
Water is a product of burning process (combustion). It is already oxidized.
H + O2 = H2O
CH4 + O2 = CO2 + H2O
The unique molecular structure and high energy of dissociation make this difficult to split water molecule.
Therefore water can't burn again.
Water is formed as a result of the combustion of hydrogen. In simple words, water is what you get when you burn hydrogen. So, water doesn’t burn because, in a way, it has already burned.(Wikipedia)
When hydrogen and oxygen react, there is no room for flammability. Oxygen and hydrogen lose their properties in the combustion process and water is formed.
The secret lies in the fact that if two elements meet in a particular chemical compound, these elements lose many of their natural properties and H2O. One of these examples is that when oxygen and hydrogen meet, a combustion reaction occurs and the result is a stable and chemically stable water complex.
Hydrogen is flammable, while oxygen is not. When hydrogen combines with Oxygen, a new molecule has properties that are completely different from the reactants will be form. That is why we use it to extinguish fires.
Because a new substance is formed with new properties as a result of chemical change
When water is formed by the interaction of Hydrogen and Oxygen molecules , these molecules would lose its own chemical and physical properties and became as a single water molecule that have inert effects.
The secret lies in the fact that if two elements meet in a particular chemical compound, these elements lose many of their natural properties and H2O. One of these examples is that when oxygen and hydrogen meet, a combustion reaction occurs and the result is a stable and chemically stable water complex.
The properties of a molecule is much different then that of atoms, we have to look at Water the molecule(H2O) of H and O and not them as individual atoms. Now what happens in burning, burning is a exothermic(heat producing) combustion reaction where any substance or molecule or atom will react with oxygen molecule(O2) to produce heat which we see as the burn or fire. For example 2Mg + O2 = 2MgO + heat or CH3OH + O2 = CO2 + H20 + heat. But in case of water the reaction never happens, the reactivity of Oxygen gas which is a non metal is very low, so it won't react with water, it simply dissolves in water. That's why aquatic biota is a possible reality. Without dissolved oxygen in water no life would have been possible inside water.
Simple, because water is not a combustible material, although it is made from hydrogen and oxygen. The chemical properties of water are highly unlike the chemical properties of it's constituent elements. Water has the highest heat capacity among all common solids and liquids, so in other words it is highly efficient in absorbing heat. Therefore it effectively acts as a coolant which reduces heat, which is in fact very necessary for fire to sustain itself.
Because the water is essentially a burnt substance, so we can not re-burn a burnt substance. The combustion process came when the oxygen atom united with the hydrogen atoms to form the water molecule.
Water is one of the most unique substances on the Planet and one of the most unexplored. Many of its properties are not yet explained (storage of information and others) and will be a mystery for scientists for a long time ...
Interesting information, valuable and objective information, and a nice discussion, dear thank you "Thank you very much" for your active participation with appreciation
Hydrogen is flammable, while oxygen is not. When hydrogen combines with Oxygen, a new molecule has properties that are completely different from the reactants will be form. That is why we use it to extinguish fires.
The original individual chemical structures of H2 and O2 are changed when they unite to form a compound H2O thus loosing the individual properties that each one had, i.e., hydrogen in H20 is no longer combustible and oxygen in H20 no longer possesses its oxidative capacity. There are many more examples in chemistry such as this. Mercuric chloride (HgCl2) is extremely toxic whereas mercurous chloride (calomel, Hg2Cl2) has medicinal properties. Go figure!
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