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| Acids and Bases: |
| Acid-base reaction theories |
| pH |
| Self-ionization of water |
| Buffers |
| Systematic_naming |
| Redox reactions |
| Electrochemistry |
| Strong acids |
| Weak acids |
| Weak bases |
| Strong bases |
A weak acid is an acid that does not fully ionize in solution; that is, if the acid was represented by the general formula AH, then in aqueous solution a significant amount of undissolved AH still remains.
HA(aq) <math> \leftrightarrow <math> H+(aq) + A-(aq) The vast majority of acids are weak acids.