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Emission of hydrogen and oxygen from the anode and cathode respectively, in the hydrolysis of pure water proves that there are ions.

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Q: How did you know pure water contain ions?
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What is found in a glass of water?

If the water is pure, it will contain H3O+ ions and OH- ions. They are hydronium ions and hydroxyl ions.


What make pure water neutral?

It does not contain any Ions It does contain ions. The point is that the positive (H) and negative (OH) ions are equal in concentration.


Does acidic solutions contain higher concentration of H ions than pure water?

Yes, it does.


Does NaOH contains H plus ions?

NaOH in pure state does not contain H+ ions but in solution state it does contain


Why does bath water conduct electricity but pure water does not?

"Bath water" or normal water, usually contain many impurities. These impurities, such as ions (especially calcium ions) help the water to conduct electricity very efficiently (just like sea water). However in pure, dH20, there are no ions and impurities. The self-ionization of water isn't enough to conduct a current. Therefore, pure water doesn't conduct current, and is actually a pretty good insulator.


Which molecule represents an ion found in a glass of water?

OH- and H+


Can you see hydronium and hydroxide ions in a sample of pure water?

no, because pure water has an even number of H+ ions and OH- ions that have all bonded to form H2O.


What elements are found in 'hard water'?

Pure water is composed of two hydrogen molecules and one oxygen molecule, thus the formula H20. Outside of a lab, it is quite unlikely that you will encounter pure water. Dec. 17,2011 Water molecule consists of two hydrogen atoms and one oxygen atom. Hard water is not pure water. It contains ions such as calcium ions and magnesium ions. calcium ions cause permanent hardness whereas, magnesium ions cause temporary hardness. True, outside of a lab, natural water will always contain some chemical species, ions or undissolved microscopic materials that are not visible to the naked eye.


What is pH pure water (neutral)?

pure water is neutral with a pH of 7


What can be said about the number of ions in water compared to an acid or alkali?

Pure water would have fewer ions.


Is any pure liquid a conductor of electricity?

All solutions that contain ions are good conductors of electricity, such as: acids, bases, salt water. Dschennai


Does pure water contain only H2O molecules?

No, it contains H2O molecules along with OH- and H3O+ions from self-ionization. This is why water can still conduct some electricity.