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30 Σεπ 2020 · The pH scale shows how acidic or basic a chemical is in aqueous solution (mixed with water). The scale runs from 0 (most acidic) to 14 (most alkaline or basic), where 7 is neutral pH. Chemicals with pH values from 0 up to 7 are acids, those with a pH value of 7 are neutral, and those with pH values greater than 7 up to 14 are bases.
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30 Οκτ 2023 · Foods that are considered acidic, like vinegar, alcohol, and citrus foods, have a pH of less than 7. And on the flipside, alkaline foods have a pH higher than 7. Foods with a pH value of 7 are usually classified as neutral. This means they neither contribute to acidity nor alkalinity in the body.
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21 Σεπ 2024 · The pH balance plays an important role in the chemical makeup of the human body. The term "pH" refers to whether a substance is acid, alkaline (also known as basic), or neutral. The human body is slightly alkaline with an average pH between 7.35 and 7.45.
pH is a measure of how acidic or basic a substance is. It takes a numerical value between 0 and 14 that measures the relative amount of free hydrogen and hydroxyl ions in water. Water having more hydrogen ion concentration than hydroxyl is acidic.
Learn about the properties of acids, bases, pH, and buffers in this comprehensive guide from Khan Academy.
