Tuesday, 15 January 2013

What is a pH Scale?

Acidic and basic are two extremes that describe a chemical property chemicals. Mixing acids and bases can cancel out or neutralize their extreme effects. A substance that is neither acidic nor basic is neutral. 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. A pH greater than 7 is basic. Indicator is when a substance or a chemical that changes color in prefrence of a acid and/or base. This helps the a Ph scale to figure out if its an acid or base.



Credits: http://www.elmhurst.edu/~chm/vchembook/184ph.html

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