If water is made of hydrogen and oxygen why can't we just make water and solve the water crisis?
360560
Good thought. But dear i want to tell you the secrete of this process, the water is found by combining One Atom of Oxygen with two atoms of Hydrogen at a critical heat of formation that existed only at the formation of Earth and it is not possible to create the same Heat of formation to form Water at the Normal working conditions.
446824
You would need an enormous source of hydrogen, to make the reaction self sustained. That would mean a lot of water and electricity.\n\nMy idea to solve for excess CO2 would be to genetically modify algae so that they can live on Mars or Venus.
140675
Cars powered by ordinary water...Time will come (most likely in the very near future) where water can be separated into its components economically. Water is made up of hydrogen and oxygen. Hydrogen is a very good fuel (sun's energy comes from hydrogen) and oxygen is needed for efficient combustion...The problem is, the bond between hydrogen and oxygen is so strong that it is still expensive to separate them as of now...Car makers though have started experimenting with cars powered by hydrogen but using fuel cells...Still an expensive proposition.
258479
Water is H2O. Two hydrogen and one oxygen. Water is the universal solvent because it mixes well with most substances. Water is the most common and mysterious substances on earth. Water is suppose to be a gas ,but it's a liquid at room temperature. Water has a negative side (oxygen) and a positive side (hydrogen). This is another reason why water is the universal solvent it can dissolve just about any solute because the H and O are at 102o angel which means it can pick up most solutes. 97% of the earth's water is salt water will only less than 3% is drinkable. 70% of the earth's animals live in salt water. All animals need water.
515445
because water is a renewable resource. There is as much water on the earth today as there was when the earth formed.  The argument that not all of that water is as drinkable today as it was then is a weak one. The water from a treatment plant (post treatment) is usually cleaner than plain tapwater!
726254
You cannot combust water, it is already the result of the combustion of hydrogen in the presence of oxygen.
509750
Air is just a homogenous gas mixture, therefore you can make it if you dissolve all of the major components of air into a container. Or...you could run through millions of other experiments trying to release only certain elements in the container.
318871
The reason is because there is no atmosphere to retain the water. If you did a slow process with water you could eventually get a green house going. It would take a 1000 years and its not really worth it. This would use trillions of tax dollars of money that could possible never work.\nPlus we need trees once there becomes somewhat of a green house to produce oxygen to counter act the CO2.
646072
Di-hydrogen oxide would be the chemical name of water. H2O is the chemical formula. The are many ways a person could draw a physical model of it. Now there are other chemicals and ions that only contain hydrogen and oxygen. There is Hydrogen peroxide as an example of a chemical. There are hydroxide ions HO- and oxonium ions H3O+. There is a limit to how many chemicals can be derived by both Hydrogen and oxygen because Hydrogen can only bond to one atom at a time, and Oxygen can only bond to two atoms at a time. Although that would in theory allow an oxygen chain that could have a hydrogen atom on each end with the exception of hydrogen peroxide H2O2, this does not occur. Species with only oxygen. An oxygen atom O it seldom ever found in nature for electronic reasons. An oxygen diatomic molecule O2 is the most abundant form of pure oxygen in the atmosphere. Ozone O3 is not particularly stable it is usually made by free radical chain reaction, but then tries to react with whatever it can. H atomic Hydrogen seldom ever found in nature. Diatomic hydrogen molecule H2 is the most abundant species in the universe, but somewhat rare on earth. Hydrogen H+ ion can exist, but in water it is the short hand for writing H3O+ which I referred to earlier.
565188
water is  H2O, it's two separate element on the periodic chart - H for hydrogen and O for oxygen.
688444
In addition to the oxygen, water, issues previously discussed, the surface is under constant attack by radiation and high energy particles due to the lack of a sufficient atmosphere.  We would have some mutated DNA after too long on the surface.  That's not too good.
49410
i agree with the second one.  water is clearly defined as having two hydrogen and one oxygen atom.  if it doesn't have oxygen, then it can't be water.\n\nit is possible that the "water" is actually liquid hydrogen, carbon dioxide, etc.  if the "water" is a solid, it can be the frozen of anything above plus lots of other compounds or elements.\n\nif this meteorite was found on earth, then it probably wasn't any of those either since it would have melted.  if it was still a meteor in space, then it could be.  comets are known to have "ice" and dust as their tail.  this isn't really ice as in water turned to ice, but ice is used to refer to other elements or compounds in the solid form (dry ice is CO2).\n\nif you read that in an article in a magazine or newspaper, they were probably try to make it easier to understand what they were trying to say, and decided to use water to describe a liquid or ice to describe the solid that they found.
967355
try thinking about the energy needed to break the ionic bonds. water can be split, but the energy needed is massive, because the bonds are so stable
734812
No, it is 5, water have to be oxidized in order to produce oxygen.
998325
Hydrogen is volatile due to its extreme small size.  Its reactivity is due to its small size, which leads to pervasiveness and high average molecular speeed.  Simplicity can often be unstable.\n\nThe magic or marvel behind hydrogen fuel, is that besides heat energy, the reation simply produces water.  Most other fuels (carbon based) produce CO2 and water with complete combustion.  CO2 is said to lead to global warming.  \n\nOf course water's got problems too, but no one wants to pay attention to that.  See the link below for more inf.
928534
You are asked two questions and you need two answers:\n\n1) The chemical formula for water is H2O which shows that the two elements needed to combine are Hydrogen and Oxygen.\n\n2) The proportion of the two elements needed, is also shown by the formula. This is 2 /1 Hydrogen / Oxygen by volume, or 2 /16 by weight.
158743
One of these scientists, a man named Democritus, would sit here in the central market place of Athens, Greece, and explain to one and all how all things on earth and in the heavens are made of extremely tiny, simple particles. He called them "atoms.o/oo \n\n\nThus when the element hydrogen combines with the element oxygen, it must do so all or none. In the case of water, for instance, one atom of oxygen combines with two atoms of hydrogen. Now when oxygen combines with carbon to make carbon dioxide, two oxygen atoms combine with one carbon atom. And when they make carbon monoxide, it is one atom oxygen to one atom carbon. So, too, all other chemical compounds are made of a simple combination of a few basic atoms.