victor809 wrote:Again, I hope you're joking.
There are two problems :
1 Sea water has salt in it. When it freezes the ice is pure water, which is less dense, leading to a percentage of the ice floating ABOVE the water (i believe 20%).
2 - There are chunks of ice which aren't on the water, but instead build off of land masses.
What are you saying in #1?
All ice is less dense than water. I don't recall the percentage, but the reason icebergs float is because it's ice and has nothing to do with the salt content.
Salt water is more dense (more buoyant) and the frozen (pure) water may float higher, but the salt and water ratios never change. The reason the water has a high salt content is partially due to the fact that some of the water froze. So when the water melts, the combination merely goes back to the original ratio.
We aren't creating or destroying matter (salt) here.