a student is performing a Benedict test or an unknown substance. The student as the region that chemical required to make a color change and nothing happens. Which conclusion can the student make is it the test was inconclusive because the student forgot to add heat was the substance glucose or the substance is not glucose or is that the test was inconclusive because the student needed to also test with iodine or vinegar

Answer 1

The correct conclusion the student can make is that the test was inconclusive because the student forgot to add heat.

In the Benedict's test, heating the mixture is essential for the chemical reaction to occur, which allows for the color change to indicate the presence of reducing sugars like glucose. If the student did not add heat, the solution would not change color, and thus they cannot definitively conclude anything about the presence of glucose or other substances.

While testing with iodine or vinegar might provide additional information about the unknown substance, it is not necessary to make a conclusion specifically about the outcome of the Benedict's test in this case. Therefore, the key issue here is the lack of heat during the test.