GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW) | ||||||
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15:50 Dec 15, 2009 |
English language (monolingual) [PRO] Science - Agriculture | |||||
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| Selected response from: Andrés Martínez Spain Local time: 19:13 | ||||
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SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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5 +7 | around 7 |
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4 | pH 7 is neutral, so this is just emphasising what is said |
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around 7 Explanation: It´s the numerical value of pH, around 7 is neutral pH. See the following reference: pH Scale The pH scale measures how acidic or basic a substance is. The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. ... www.elmhurst.edu/~chm/vchembook/184ph.html -------------------------------------------------- Note added at 3 mins (2009-12-15 15:54:06 GMT) -------------------------------------------------- Sorry, 7 is neutral pH. 0 is extremely acidic, and 14 extremely basic. |
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