PLEASE HELP What is the phase of water when its temperature is 150 °C?
A. Solid
B. Liquid
C. Gas
D. None of the above.
What is true of a gas?
A. A gas has a fixed shape and will expand or shrink to fill any container.
B. A gas has a fixed shape and has the same volume in any container.
C. A gas has a changeable shape and will expand or shrink to fill any container.
D. A gas has a changeable shape and has the same volume in any container.
An unopened bottle of water is taken out of the refrigerator and placed on a table. After a while, the bottle is covered with droplets of water. What phase change has occurred?
Water bottle
A. Melting
B. Freezing
C. Boiling
D. Condensation
Molten lava pours from a volcano in Hawaii. After a few hours, the liquid lava hardens into a shiny gray rock. Which phase change has taken place?
Lava
A. Melting
B. Freezing
C. Boiling
D. Condensation