The P/H Scale

pH is a measure of the acidity or basicity of a substance. If the pH is less than 7, the solution is acid. If it is greater than 7, it is a base or a base. When pH is 7, it is neutral. The pH of a strong acid is lower than that of a weak acid, and the pH of a strong base is lower than that of a weak base. The neutral solution is neither an acid nor a base. It has a pH value that the scientist uses to indicate the strength of acid or base. The pH is measured by immersing the litmus in a solution such as water or other substances. A very basic or acidic chemical is called "reactive". Car batteries have reactive acids and contain some stronger forms of the same acid in acid rain. Domestic wastewater treatment agents usually contain lye. Vinegar and lemon juice are acidic substances, laundry detergent and ammonia are alkaline. Pure water is neutral, pH is 0. Not passive

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