A green solution of a pH indicator was added to a sample of spring water. The resulting solution was yellow. Was the observed change due to a physical or a chemical change

Question

Chemistry

Camden Riggs

20 April, 18:33

A green solution of a pH indicator was added to a sample of spring water. The resulting solution was yellow. Was the observed change due to a physical or a chemical change

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Cottonball · Answer 1

Chemical Change

Explanation:

Color changes in chemical compounds are as a result of chemical reactions between the two reactant, and in this case a new reactant is been formed.

which eventually changes the color to yellow.

Indicators like Leucomalachite green do changes from green (base) to yellow (acidic).

So for a new product to be formed which is of different color and chemical properties, the observation change is definitely a chemical change