First it floats, then it melts and makes the water colder.
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they are both water
A glass of ice water is an example of a physical change, where water changes from a liquid to a solid state as it freezes. This change is reversible, as the ice can melt back into water.
The temperature will be the same.
Ice is less dense than water and therefore floats on water so when the glass has water in it the ice will always stay above the water.
If he glass was full and you put ice cubes in it would overflow strait away.
Stays the same (assuming that all the ice was floating to begin with).
When the ice melts the water level will rise. The water level will increase because Ice is frozen water and when the ice melts, it turns to water, which means more water will be added to the glass.
An ice cube will dissolve in water because the water is warmer than the ice.
If both of them consist of water and ice at the same time then the temperature for both of them is zero Celsius (from the heating curve of water)
No, a glass filled to the brim with ice and water will not overflow once the ice starts to melt. The ice displaces some of the volume of the water, so there is enough space for the melted ice without overflowing.
Pick an answer: a) For both glasses, the water is about the same temperature, say just above 32F. Then the glass without ice has the most water by mass. b) The glass with only water is quite hot, say just below boiling. The glass with water and ice cubes is just about at 32F and the volume of ice is very small (less than 2%). The the glass with water and ice could have more water by mass. c) By definition, water refers to H2O in its solid form. By definition, ice refers to H2O in its solid form. So, "by definition", the half full glass with ice will always have less water by volume.