User contributions for Piyrwq

A user with 184 edits. Account created on 18 April 2005.
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21 November 2008

  • 18:4918:49, 21 November 2008 diff hist −2 PHalkalinity is not the opposite of acidity, but basicity is, so I replaced the term in the definition. pH can be varied without affecting the alkalinity. see alkalinity article.

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