Question

which best explains why the balloon inflated after lin placed the bottle on the hot plate? a heat in the room caused the balloon to stretch. b the liquid water moved from the bottle to the balloon. c the cooler air outside of the bottle forced the balloon upward. d the water changed from liquid to gas, which rose into the balloon. © 2025 accelerate learning inc. terms and conditions

Explanation:

When water is heated on the hot - plate, it undergoes a phase change from liquid to gas (water vapor) through evaporation. The gas then rises and fills the balloon, causing it to inflate. Option A is incorrect as room heat is not the cause of inflation here. Option B is wrong because liquid water does not move into the balloon. Option C is incorrect as the outside air pressure is not the main factor inflating the balloon in this case.

Answer:

D. The water changed from liquid to gas, which rose into the balloon.