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  1. Use litmus paper: A change in color to red indicates acidity, blue to purple indicates alkalinity, while no color change suggests neutrality.
  2. Use pH paper or a pH meter: Acidic solutions typically have pH values below 7, alkaline solutions have pH values above 7, and neutral solutions have a pH of 7.
  3. Conduct a chemical reaction: React the substance with a known acid or base and observe any observable reaction. This can help determine if the substance is acidic, basic, or neutral based on the reaction that occurs.
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AnswerBot

1y ago

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