Question

Josie observed that when water is boiled in an open beaker it completely disappears, leaving the beaker dry. What can Josie conclude?

Answer 1

Josie can conclude that the water was brought to a high enough heat to be able to evaporate.

Hope this helps!

Answer 2

For the mass of water to be conserved during boiling, the beaker must be closed.

Step-by-step explanation: