Write a letter (about 120 words) to the editor of an english daily expressing your views for the soaring prices of medicine and medical treatment along with lack of medicine and down the cause and evil effect at it.[Please help me.]
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A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH of the solution can be determined visually. Hence, a pH indicator is a chemical detector for hydronium ions or hydrogen ions in the Arrhenius model.
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