What do acids release when mixed with water?
A) Oxygen
B) Hydroxyl
C) Hydrogen
D) pH
Answer: C
Explanation: A) Incorrect. Acids are corrosive substances with a pH less than 7 that release hydrogen (H+) ions when mixed with water.
B) Incorrect. Bases are corrosive substances with a pH greater than 7 that usually release hydroxyl (OH-) anions when dissolved in water.
C) Correct. Acids are corrosive substances with a pH less than 7 that release hydrogen (H+) ions when mixed with water.
D) Incorrect. Acids are corrosive substances with a pH less than 7 that release hydrogen (H+) ions when mixed with water.
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