Why does an ice cube that is dropped into a glass of water melt?

Answer 1

Because cold slows down the hydrogen and Oxygen atoms (H2O) in water, they become more compressed (frozen). Heat, or temps above 32 degrees, tend to excite these atoms causing them to move apart thus causing them to melt.
It only melts IF the environment is above the freezing point...

in Antarctica it might never melt.
Ice cube melts because when the room is in its normal temperature that is bout 25 degrees it melts the ice and when the ice melts a few minutes later it evaporates

Answer 2

That all depends on the size of the ice cube and the water and air temperature.

According to the square/cube law, smaller ice cubes will melt faster, proportionately, than larger ice cubes at the same temperature. So a block of ice will last longer than the same weight of ice in cubes. The greater the surface area exposed, the faster the ice will melt.

Ice in water will tend to melt slower than ice in air, which is why you would typically NOT want to dump cold water out of an ice chest, provided the food will not get wet. Running a stream of warm water over an ice cube will melt it much faster than blowing warm air on it.

Answer 3

the ice cube starts to melt and melts into liquid and then evaperates into a gass.

Answer 4

Heat always transfers to the colder object. Once the ice gets above freezing temperature, it turns back into a liquid.

Answer 5

Ice is melted at any temperature over 0 oC; the intermolecular bonds are weakened.

Answer 6

Ice turns to water above zero degC

Answer 7

It doesn't - if the water is cold enough.

Answer 8

Water has a higher temperature.