Final answer:
Water at 0°F does not have no heat energy or molecular activity.
Step-by-step explanation:
No, it is false to say that water at 0°F has no heat energy or molecular activity. Even though the temperature of water at 0°F is very low, it still has some heat energy. Additionally, molecular activity does not solely depend on temperature. Water molecules can still have some movement and molecular activity at very low temperatures.