Talk:Acid Manipulation/@comment-174.254.0.139-20120423221640/@comment-81.129.157.227-20120523153832

Acids have hydrogen ions, bases have hydroxide (hydrogen and oxygen) ions. When an acid and a base meet the two sets of ions combine to make water. The other chemicals in the acid and base e.g.                                                                                                                           HCL (Hydrochloric Acid) + NaOH (Sodium Hydroxide)                                                         > H2O (water) + NaCL (Sodium Chloride)

This is why water neutralises acid and alkalis/bases. Alkalis are bases that can dissolve. The pH is the concentration of each. Hope that was understandable.