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Acids and Bases
Acids and Bases
Acids and Bases
Many acidic and basic solutions are colorless and odorless. There are molecular substances called indicators that change color when they come into contact with acids or bases.
- cabbage juice
- litmus
- universal
Acids:
- taste sour
- litmus paper ---> red
- react with strong bases to produce salt and H₂O
Bases:
- taste bitter
- litmus paper ---> blue
- react with acids to produce salt and H₂O
Substances with a pH 0-7 are acids, while substances with a pH 7-14 are called bases. Substances in the middle (7) are neutral.