Question

Why do you think it’s difficult to measure the melting point of a substance?

Answer 1

It is difficult to measure the melting point of a substance because very small amounts of impurity can cause the melting point to spread out over a range of several degrees.

Step-by-step explanation:

Answer 2

Step-by-step explanation:

It is difficult to find a melting point because very small amounts of impurity can cause the melting point to spread out over a range of several degrees. Impurities also lower the melting point of a substance; this explains why we put salt on icy sidewalks and roadways.