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Molecules of hydrogen escape from earth but molecules of oxygen and nitrogen are held to the surface why?
Wiki User
∙ 13y ago
Molecules of Hydrogen are less dense than oxygen and nitrogen so gravity keeps the oxygen and nitrogen inside the atmosphere.
Wiki User
∙ 13y ago
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Can water molecules evaporate at the surface or below the surface?
water molecules can evaporate at the surface but not below the surface
What are characteristics of hydrogen bonds?
Hydrogen bonding between molecules occurs between water molecules. These are types of dipole-dipole interactions. Hydrogen bonds between hydrogens eg H2 are covalent as are the bonds between hydrogen and carbon atoms. Hydrogens have a mid range electronegativity so they tend to form covalent bonding.
What properties do hydrogen bonds give water?
* Cohesion * Adhesion * Capillary Action * High Specific Heat (resists temperature change) * Ability to dissolve most substances ("the solvent of life") * Evaporative cooling * Buoyancy of ice
What is the process by which molecules at the surface of a liquid absorb enough energy to change to a gaseous state?
Evaporation is the process by which molecules at the surface of a liquid absorb enough energy to change to the gaseous state.
Why does surface area of a reactant influence the rate of the of the reaction?
by pooing on the leg
What is between water molecules cause surface tension?
Water molecules are associated by hydrogen bonds.
What The high surface tension of water explains why water?
Water molecules can make hydrogen bonds with other water molecules. Hydrogen bonds are the strongest type of intermolecular forces. This explains the high surface tension of water.
Does cohesion create surface tension in water?
Cohesion of water molecules occurs through the formation of hydrogen bonds between molecules
Why evaporation known as surface phenomena?
Evaporation is known as surface phenomena because molecules of water present on the surface of liquid are bonded weakly as compaered to inner molecules and when temperature increases hydrogen bonding between water molecules breaks.Due to this water molecules tend to evaporate.so that's why it is called as surface phenomena.
What property of water molecules causes a large surface tension?
Water molecules can make hydrogen bonds between each other since the molecule is 'very' polar (due to the very electronegative oxygen)
What is the property of hydrogen bond molecules together and adhere them to hydrophilic surface?
cohension
What is the tendency of water molecules to stick to molecules of another substance?
The ability of water molecules to stick to one another is due to cohesion. Cohesion is what gives rise to properties such as surface tension.
What happens to water molecules as water evaporates?
The hydrogen bonds between the water molecules in the liquid are broken.
What is the surface tension in a cup of water caused by?
The surface tension in a cup of water is caused by attraction. The hydrogen molecules in the water are attracted to the polar oxygen bonds.
What property of water allows water molecules to stick together?
The property is cohesion. Cohesion among water molecules at the water's surface produces surface tension.
Why does soap reduce the surface tension of water?
Soap molecules have a hydrophilic (water-attracting) end and a hydrophobic (water-repelling) end. When soap is added to water, the hydrophobic ends interact with non-polar substances like oils and dirt, which disrupts the hydrogen bonds between water molecules and decreases surface tension. This allows water to spread more easily and penetrate into crevices to wash away dirt and oil.
How are water molecules packed when they are in a liquid?
They are linked to other water molecules by hydrogen bonds, which are relatively weak though strong enough to confer surface tension. They aren't static, there is fluidity because water molecules constantly bonding and unbonding with other watrer molecules.
