What is the difference between hydroxide (HO-) and water (H2O)? Hydrogen and oxygen combine to form water but why is it not called hydroxide?
Why can we not write hydroxide and water interchangeably although both of them consist of hydrogen and oxygen atoms?
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Answers
Answer:
What is the difference between hydroxide (HO-) and water (H2O)?
⇒ H2O is stable while OH is not.
Water ie. H2O breaks in H+ and OH- or you can say if we remove one H from water OH is formed.
Water is neutral where as hydroxide ( OH-) is basic in nature.
Again water is neutral while OH is negatively charged.
Hydrogen and oxygen combine to form water but why is it not called hydroxide?
⇒ When molecular hydrogen (H2) and oxygen (O2) are combined and allowed to react together, energy is released and the molecules of hydrogen and oxygen can combine to form either water or hydrogen peroxide.
Why can we not write hydroxide and water interchangeably although both of them consist of hydrogen and oxygen atoms ?
⇒ It's written in "reverse order" because hydroxide is a polyatomic ion that still needs balance to be part of a compound. In most cases, when OH bonds to another ion the oxygen is the one that bonds to the other ion. Because of this it's is written as OH, so that it will be easier to tell how the molecule is bonded.