Question

Can you pls answer these. pls​

Answer 1

Answer:

here is the answer of

Explanation:

please mark as brainlist

Answer 2

Explanation:

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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.