Of course, compounds are very different; only the state of matter is similar.
It expands when frozen.
Frozen water expands, while other frozen liquids contract.
Water is different from other compounds, it is most dense as a liquid at 4C.
Compounds are comprised of different elements, for example water, H2O is a compound formed by the elements Hydrogen and Oxygen.
It expands when frozen into a solid. Also, it is the universal solvent. Given enough time, water dissolves everything.
Since the salt is heavier than the water its not going to evaporate. So after the water evaporates you have the salt and other compounds left. Which means you have separated water from other compounds. HOPE THIS HELPS
The answer depends on the context: Do you want: frozen water as a percentage of all water on earth? frozen water as a percentage of all matter on earth? frozen water as a percentage of all water in the solar system, or beyond? frozen water as a percentage of all matter in the solar system, or beyond? There are other possible interpretations.
Molecular (covalent) compounds are not dissociated in water.
icicle
Salt water is composed of a number of compounds. First there is water, which is a compound, H2O. Then there are the salts. Several different types of salts are in salt water, and each of them is a compound.
Ice is frozen liquid, mainly water. Water freezes at 0 degrees Celsius or 33 degrees Fahrenheit. Other liquids freeze at different temperatures.
Any other compounds dissolved in water may be properly called a "solute", and when the compounds are ionic they may also be called "electrolytes."