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What happens to the polarity of oxygen atoms as they transform from molecular oxygen into water molecules?
Wiki User
∙ 14y ago
In the bond in molecular oxygen, the electrons are pulled equally towards each element, as they are the same element and so have the same electronegativity.
In water, however, the bonds are between hydrogen and oxygen. The nucleus of oxygen has eight times the charge of the nucleus of hydrogen, and so attracts the electrons more strongly than hydrogen does. It does not attract eight times as strongly as hydrogen as the extra electron shell repels the electrons in the bond more than hydrogen's nonexistent shells (its only electron is in the bond). It can therefore be said that oxygen is more electronegative than hydrogen.
As the oxygen attracts the electrons more strongly than the hydrogen, it gains a partially negative charge. Similarly, the hydrogen gains a partially positive charge.
This polarity is responsible for the interesting properties of water, including its ability to stay liquid at room temperature, its low density as a solid and its ability to climb up a narrow capillary tube without any force applied to it.
Wiki User
∙ 14y ago
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How can molecules of sugar be dissolved by molecules of water?
When crystallized sugar is put into water, the H2O molecules separate the sugar molecules from each other. This happens because both H2O and sugar molecules are polar. The polarity causes the much smaller H2O molecules to squeeze between the sugar molecules and break the weak van der Waals forces that exists between them. The H2O molecule bonds to the sugar molecule with a stronger bond than the earlier van der Waals force (because of the polarity of the molecules).
What happens to molecules when the temperature reaches absolute zero?
by the laws of thermodynamics, nothing can ever reach absolute zero. Theoretically, molecular motion would stop. They would still be molecules, they would just not move.
What happens when fast moving molecules touch?
If they collide hard enough, and have the right orientation, a reaction can take place. This is called collision theory, and it's a big part of kinetic molecular theory.
What happens on the molecular level when an ionic solid like NaCl dissolves?
Na+ and Cl- ions gets separated and each ion gets solvated (surrounded by solvent molecules)
What happens when molecules are heated or cooled?
Depends on what sort of structure those molecules are in and which molecules they are. It's relevent because certain molecular and intermolecular structures and arrangements are more stable than others, making some remain put where as others will gain enough energy to release themselves. Electronic orbitals have everything to do with it.
What happens to molecules when they are 2 times molecular?
they dice apart
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The inter-molecular bonds between the atoms/molecules are broken, releasing the atoms/molecules from a ridged structure to a freely moving mass.
What happens to water molecules as ice melts in terms of kinetic molecular thery?
As the ice melts, the water molecules gain energy, causing them to move more quickly.
How can molecules of sugar be dissolved by molecules of water?
When crystallized sugar is put into water, the H2O molecules separate the sugar molecules from each other. This happens because both H2O and sugar molecules are polar. The polarity causes the much smaller H2O molecules to squeeze between the sugar molecules and break the weak van der Waals forces that exists between them. The H2O molecule bonds to the sugar molecule with a stronger bond than the earlier van der Waals force (because of the polarity of the molecules).
What happens to the molecules when you boil water do they boils off or stay behind?
Whe you boil water, molecules of water "escape" into the atmosphere. The molecular structure of water is unaffected by boiling.
What happens to compounds at molecular level when melted?
The bonds between molecules are broken, and the molecules move freely, with a lesser degree of bonding (with no bonding at all you get a gas rather than a liquid).
During the process of diffusion what happens?
Diffusion is the movement of molecules from a region of higher concentration to one of lower concentration by random molecular motion.
What happens in the process of diffusion?
During diffusion molecules move from a region of higher concentration to one of lower concentration by random molecular motion.
What happens when a microphone polarity is reversed?
it does not work
What happens to molecules when the temperature reaches absolute zero?
by the laws of thermodynamics, nothing can ever reach absolute zero. Theoretically, molecular motion would stop. They would still be molecules, they would just not move.
What is the transfer of energy that happens when molecules bump into one another?
The energy transferred is heat. On a molecular level it is kinetic energy, but what we observe on a macroscopic level is temperature.
What happens if you reverse DC polarity of a lamp?
nothing
