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In chemistry, pure water is categorized as being what?
Acidic
Basic
Neutral
Alkaline
The correct answer is: Neutral
Pure water is categorized as neutral because it has a pH level of 7 at 25 degrees Celsius (77 degrees Fahrenheit). This pH level indicates that the concentration of hydrogen ions (H+) is equal to the concentration of hydroxide ions (OH-), resulting in a balance that does not favor acidity or basicity. In the context of acid-base chemistry, substances with a pH less than 7 are considered acidic, while those with a pH greater than 7 are basic or alkaline. Therefore, categorizing pure water as neutral accurately reflects its chemical properties, specifically its ability to neither donate nor accept protons in a significant way. This neutrality is also significant in various chemical reactions, as it serves as a reference point in the pH scale.