1. An acid is a substance with a pH of less than 7, and reacts with bases and metals. They usually turn litmus paper blue. The lower the pH, the greater acid there is.
2. Neutralization is when you balance out how acidic or basic something is through a chemical reaction... or making the pH 7. An example would be making salt.
3. An indicator is something that shows how acidic or basic something.
4.Corrosive is a substance that dissolves or disintegrates with its surroundings, such as a strong acid or base.
5. Hydroxide ion aka OH- is the ion created by a base with water.
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