Question

Which statement about the physical change of liquid water boiling into steam is true?

The heat added represents an energy change.
The action cannot be reversed.
The steam cannot conserve mass.
The weight lost represents a mass change.
Subject I s SCIENCE. I had to chose CHEMISTRY becasue it wouldn't let me move on

Answer 1

A

Step-by-step explanation:

The heat added represents an energy change.

Answer 2

The heat added represents an energy change.

Step-by-step explanation:

In this process, the heat added is the energy change needed for this phase change from boiling water to steam.

• The boiling water needs additional heat to cause the phase change.
• This heat is the energy change.
• If energy change is added or removed, phase changes will occur for this reaction.
• Mass is conserved in this change.
• The action can be reversed.