Chemistry, 31.12.2019 05:31, alonzob2367

Astudent was given two clear liquids; a colorless liquid and a dark-blue liquid. the student was asked to combine the liquids in a beaker and record observations. which of the following results, if true, would provide the best evidence that a chemical change took place when the liquids were combined?
a. have combined to produce a new substance.
b. were pure substances before they were mixed.
c. are toxic and should be handled with extreme caution.
d. have been stored too long and are no longer good.

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Astudent was given two clear liquids; a colorless liquid and a dark-blue liquid. the student was as...