2006-11-06 23:38:49 · 4 answers · asked by charmaine_ong15 1 in Science & Mathematics ➔ Physics
pls help me its due tom oct 8 2006 pls paula
hears my YM charmaine_ong15
2006-11-06 23:41:37 · update #1
Ice melts when placed in water because it is placed in an environment that is warmer than 0 degrees C. As the ice melts, it releases the gasses that were trapped in the ice when it was formed, thus bubbles are seen to be released.
2006-11-06 23:47:50 · answer #1 · answered by k² 6 · 0⤊ 0⤋
The only bubbles that can be made are from air trapped in the ice, As the ice melts the air escapes as bubbles. The air was dissolved in the water from which the ice was made. As the water cooled to form the ice it couldn't hold as much air and as this air was forced out it became trapped in the ice. (This is not due to solubility but because of the molecular structure of the ice)
2006-11-07 21:55:30 · answer #2 · answered by Examiner 3 · 0⤊ 0⤋
Water at the boiling point can not hold gas in solution (see the bubbles form at the bottom of a pan of water on a heating range). Cold water near the freezing point can hold the most dissolved gas in solution. As water freezes, ice crystals grow excluding minerals and gas that are driven ahead of the crystals. When the water is almost all frozen, the minerals and gas are concentrated and trapped at the boundaries of ice grains. When the ice is melted the concentrated gas at the grain boundaries can escape as bubbles. Also notice that when lake ice thaws in the spring, the grain boundaries that include minerals and gas melt first producing "rotten ice" that can not hold your weight. On a ski slope it is called "corn snow."
2006-11-07 08:30:38 · answer #3 · answered by Kes 7 · 0⤊ 0⤋
because of the melting of the ice
2006-11-07 08:07:09 · answer #4 · answered by afosjohn 1 · 0⤊ 0⤋