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Acids or bases can be tested by chemical WHAT

User Mewahl
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Answer:

Acids or bases can be tested by chemical indicators.

Step-by-step explanation:

A chemical indicator can be described as a paper substance which changes colour when dipped in an acidic or basic solution. It can be described as a chemical indicator for hydrogen ions (H+) and hydronium ions (H3O+).

Acidic solutions normally dive red-orange colours depending on the acidicity of the substance. The basic solutions give blue-violets colours depending on the basicity of the substance.

User Kakshil Shah
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