That would depend on the volume of water and the temperature to which you expose it. It would also depend on your definition of instantly.
Relatively small volumes of water can be frozen "instantly" if placed into a cold enough environment.
When it freezes.
It floats when it freezes.
Cold water freezes faster then warm water.
water freezes at 0 degrees Celsius.
the reason salt water freezes is because of the amount of salt in the water
Because when the water freezes it expands.
32 degrees at which water freezes 32 Degrees Fahrenheit at which Water Freezes.
Since water expands when it freezes, it causes cracks in rocks when it freezes inside them.
When it freezes, water becomes ice.ICE- A surface, layer, or mass of frozen water.
wedginald
Water freezes at 0 degrees Celsius
32 degrees Fahrenheit at which water freezes