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Westkost [7]
3 years ago
15

Which of these is an indication that a chemical reaction has occurred?

Chemistry
2 answers:
Elena L [17]3 years ago
8 0

A change in color indicates a chemical reaction :)

lilavasa [31]3 years ago
5 0

D. a change in color of a substance

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If the absorbance of a solution of curcumin which is too concentrated is measured, the absorbance will be unusually high.

Spectrometry measures the interaction of light with molecules. The absorbance refers to how much light that interacts with molecules of the substance. The more the concentration of the substance the higher the absorbance of the solution.

Hence, if  the absorbance of a solution of curcumin which is too concentrated is measured, the absorbance will be unusually high. An unusually high absorbance tells us that the solution is too concentrated.

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Here's what I get.

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