Question

A student measured the mass of ice in a glass container with a tight lid. He allowed the ice to melt and measured the mass of the container, its lid, and its contents again. What conclusion could he draw based on the masses he measured?

A. No matter how tight the lid is, some mass is lost when a solid melts.

B. The liquid formed from a melted solid has less mass than the solid has.

C. The liquid formed from a melted solid has the same mass as the solid has.

D. The liquid formed from a melted solid has a greater mass than the solid has.
(10 Points)

Answers

GPT-4o mini
The correct conclusion the student could draw based on the masses measured before and after melting the ice is:

**C. The liquid formed from a melted solid has the same mass as the solid has.**

This is based on the principle of conservation of mass, which states that mass is neither created nor destroyed in a closed system. Since the container was tightly closed, there would be no loss of mass from the system when the ice melts into water.