Acids are compounds with distinct properties such as sour taste, ability to react with metals, and turning blue litmus paper red.
Acids are compounds that have a sour taste, react with metals and carbonates, and turn blue litmus paper red. They also change the color of certain acid-base indicators, such as litmus and phenolphthalein. Acids like hydrochloric acid in the stomach aid in digestion by breaking down food.
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