fact
Water expands when it freezes due to molecular geometry and the fact that it is a very polar molecule. The water molecule is shaped like an upside-down "v". Due to this shape, when water freezes it make a hexagonal shape such that the slightly negatively charge oxygen atoms are aligned with the slightly positively charge hydrogen atoms -- this is the most stable configuration. (Molecules that are less polar do not configure themselves in this way because there is less of a reduction in energy if the molecule is not as polar.) This orientation leaves space in the middle of the frozen water molecules. That is why water expands when it freezes.
The fact that ice is less dense than water is related to the unique structure of water molecules in a solid state. In an ice lattice, water molecules are further apart due to hydrogen bonding, which causes the overall volume of ice to be greater than that of liquid water, making it less dense.
Fact
Water has very high dipole moment at 1.85 debye, due to electronegativity difference between H and O atoms. Thus conferring electrostatic attractions that cause a strong tendency for the molecule to form hydrogen bonds at all times, where each hydrogen atom is in line between two 2 oxygen atoms. Electrostatic attractions between the strong dipole moment of water tend to orient them. In ice, they form tetrahedral arrangements. This bonding tends to get stronger as the temperature decreases. When the ice structure is completely bonded the crystalline structure becomes 'open' therefore causing water to expand upon freezing. This hydrogen bonding tendency gets stronger as the temperature gets lower (because there is less thermal energy to shake the hydrogen bonds out of position) and in liquid form, hydrogen bonding still exist until water turns into gaseous state.
Ice is less dense than water at the same pressure. That is why ice cubes and icebergs float on the water.
It is a fact that there is water on the moon, just frozen under it's surface
You are correct, Ice and water have the same composition but the do not have the same DENSITY.When water freezes to form ice, the spacing of the water molecules held rigidly in the ice crystal is actually further apart than the molecules are when they in the liquid state. Water therefore EXPANDS on freezing (which is why frozen pipes burst) and the ice crystals are therefore less dense than the liquid water.
Is opinion
fact
Frozen water on the moon might hint at the fact that the moon either once was, or currently is capable of supporting some form of life.
Is he has to make a living, a fact or opinion?
how can you change a fact into an opinion?
No, an opinion is not a fact. An opinion is a personal belief or judgment, while a fact is a statement that can be proven true or false based on evidence.
No, a fact and an opinion are different. A fact is a statement that can be proven true or false, while an opinion is a personal belief or judgment.
This property makes ice less dense than water, making it buoyant. This allows ice to form sheets on top of water rather than below, keeping the rest of the water from freezing, therefore allowing aquatic life to survive in cold places, which may go on to serve as food sources for animals on land like penguins and seals.
Fact means something that is definite and unchanging. Opinion is what someone feels about something. It is a fact that Obama is the president. It is my opinion that he is ruining this country. It is a fact that the sky is blue when there are no clouds. It is my opinion that we should have more sunny days.
Water expands when it freezes due to molecular geometry and the fact that it is a very polar molecule. The water molecule is shaped like an upside-down "v". Due to this shape, when water freezes it make a hexagonal shape such that the slightly negatively charge oxygen atoms are aligned with the slightly positively charge hydrogen atoms -- this is the most stable configuration. (Molecules that are less polar do not configure themselves in this way because there is less of a reduction in energy if the molecule is not as polar.) This orientation leaves space in the middle of the frozen water molecules. That is why water expands when it freezes.