Write the characteristics of acids
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Answer:
pH < 7.
Sour taste (though you should never use this characteristic to identify an acid in the lab)
Reacts with a metal to form hydrogen gas.
Increases the H+ concentration in water.
Donates H+ ions.
Turns blue litmus indicator red.
Explanation:
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Answer:
1 sour taste
turns blue litmus red
also used as a preservative
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