Answer:
Tryptophan is an essential amino acid.
He can conclude that his experiment has very low precision.
<h3>What is Precision ?</h3>
Precision is defined as the degree of refinement with which an operation is performed or a measurement .
Precision is how close the exact answers are together.
As, the answers are increasing in time.
None of the answers are similar to one another.
Hence, He can conclude that his experiment has very low precision.
Learn more about Precision here ;
brainly.com/question/27845433
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I always thought it was a mixture but can also be a compound
Atomic mass is the answer
if u hav any more questions in chemistry ask me! I am very good at chemistry.
Answer:
Heat fusion
Explanation:
The energy required to change a solid to a liquid is called the heat of fusion.
