Answer:
no.
Explanation:
The mystery food sample did not test positive for protein using the Biuret indicator, so the sample can not be tofu, which is what Zack ate.
Answer:
Based on the data, was Zack, who ate the tofu, guilty of leaving a mess in the classroom? Answer is no
Sample Response: The mystery food sample did not test positive for protein using the Biuret indicator, so the sample can not be tofu, which is what Zack ate.
