Acids and Bases

By: Madeline Hiebert 1st Period Chemistry

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Characteristics of Acids

Acids generally have a very sour taste (like lemons). They turn blue litmus paper red, and they also react with metals to form hydrogen gas.

Three Examples of Acids

Acetic Acid- HC2H3O2

Carbonic Acid- H2CO3

Nitric Acid- HNO3

pH of acids

Acids have a pH that is less than 7.

Differences Between a Strong and Weak Acid

A strong acid is one that is usually 100% ionized in solution. A weak acid does not usually completely ionize when it is dissolved in H20.


Characteristics of Bases

Bases usually taste bitter. They feel slippery or soapy, and they turn red litmus paper blue. They also increase the OH- concentration in H20.

Three Examples of Bases




pH of bases

Bases have a pH that is greater than 7 and is less than 14.
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Differences Between a Strong and a Weak Base

Weak bases are molecular compounds where the ionization is not fully ionized. Strong bases dissolve completely in an aqueous solution.

What does it mean to have a pH of 7?

pH is the negative logarithm of the hydrogen ion concentration. When the pH is a 7 this simply means that it is neutral since the scale goes from 0 to 14. It is the midpoint on the scale.