Question

dalton, a chemist, has a table of the melting points and boiling points of various elements.
how much higher is cobalts boiling point than its melting point?

Explanation:

Step1: Identify cobalt's melting point

From the graph, cobalt's melting point (green bar) is 1500°C.

Step2: Identify cobalt's boiling point

From the graph, cobalt's boiling point (purple bar) is 3000°C.

Step3: Calculate the difference

Subtract melting point from boiling point: $3000 - 1500 = 1500$.

Answer:

1500