How do two gases, hydrogen and oxygen , put together produce water?

Answer 1

I think your question is that if both are gases, then why aren't they gases when they form together? Let's assume that this is what you meant.

Well, liquids are liquids due to a couple of reasons. One is that they might be too heavy to overcome gravity, so the lighter stuff (like gases) floats above them. Another reason for liquids is that the molecules like each other so much that they stick together. This second reason is the best one that fits your answer.

It works like this: certain atoms have a high electronegativity. That is, their nuclei are so packed with protons that they LOVE electrons. Other atoms are the opposite...their nuclei don't have enough protons to support the electron load.

When you take two of the same atom and stick them together, they each equally like their electrons so it's an even share. When you take an atom that loves electrons and stick it with an atom that doesn't, the one that likes electrons pulls the electron density away from the other.

As it turns out, oxygen loves electrons and hydrogen doesn't care so much for them. So when you stick an oxygen together with some hydrogen, the oxygen will pull the electrons towards it. What you get in this case is a molecule that is heavy with electrons on one end and light on the other. This forms what's called a dipole moment. In other words, the molecule becomes a little magnet. Put a bunch of water molecules together and they stick to each other as would thousands of tiny magnets.

Hydrogen gas and oxygen gas are both pairs of the same atom (H-H and O-O). So when you stick their atoms to themselves, they don't form a dipole moment because nobody is being an electron hog. So no magnet = no significant force pulling molecules together. This, combined with the fact that they're pretty light, means they are gases.

Most of the lighter molecules that have only 2 of the same atom are gases. (O2, H2, Cl2, N2, ....).

Of course, if you add enough energy to the system, anything will become a gas. In such a case, you're adding so much energy to the system that the molecules want to travel fast. This forces them to break the magnetic bonds they have with each other and float away. As you know, this is called evaporation.

Hope this answered your question and sorry if I made it sound too simple. I teach this stuff to youngins.

Answer 2

Combustion is the best way to get hydrogen and water as to be bonded together, but consider this as a highly dangerous thing to do as the combustion may lead to explosion! Basically, what you need to do to bind H and O is just energy. Any sort of energy may bind the two atoms together. But there's none of that sort of energy till now. In biological system, we also produce water through cycles like Krebs Cycle, Oxidative Cycle to produce water from glucose too.

Answer 3

i'm guessing which you advise in a water molecule. confident, in a water molecule the two hydrogens are guaranteed to the oxygen by ability of covalent bonds. A hydrogen bond is a weaker stress and is between a hydrogen of one molecule and an O or N from yet another molecule.

Answer 4

In all naturally occurring Chemical reaction, Unstable reactants react with each other to form more stable products. The reaction of H2 with O2, is no exception.

Water as a molecule is one of the most stable compound found on earth. That is why our planet is covered mostly with water.

The right mixture of H2 gas with O2 gas will react violently (given an initial spark), and the gas will burn with a faint blue hue, forming heat and water, as shown in the following equation.

2H2(g) + O2(g) --> 2H2O(l) + heat

Answer 5

Hydrogen burns in the presence of oxygen and chemically combines with it to give water.

Answer 6

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