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Does water have a higher than expected boiling point because of hydrogen and oxygen forming a single covalent bond?
Jlr0420
Water has a higher boiling point than would be expected for a covalent compound of that molecular weight, because the water molecule is highly polar, and forms what are known as coordinate covalent bonds between water molecules. The polarity of the water molecule is the result of its shape, not the result of the single covalent bond that exists between the oxygen atom and each of the two hydrogen atoms.
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∙ 12y ago
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The boiling temperature of water is so much higher than that of methane because water molecules are?
d.polarWater molecules are polar covalent and therefore form attractions between the molecules called hydrogen bonds. Much of the heat that goes into raising the temperature of water to its boiling point goes to breaking the hydrogen bonds first.
What is the boiling point of giant covalent?
The boiling point of Giant covalent is: 2230ºc
Can you predict boiling point of a compound with the help of boiling points of elements in it?
The intra and inter molecular forces will help to determine the higher boiling.Intra molecular forces are Polar/Non-polar covalent bonds and ionic bonds. Covalent bonds are stronger than ionic bonds.Polar covalent bonds will have a higher boiling point because non-polar covalent bonds are only affected by London forces.Intermolecular forces are hydrogen bonding, diapole-diapole and London. All molecules have London forces.Also the higher the electro-negativity the higher the boiling point.If all of the intra and inter molecular forces are the same, refer to the electro-negativity and size. The greater the electro-negativity and size, the higher the boiling point.
Why the melting and boiling point of covalent compound are low?
Compared to ionic compounds, covalent compounds have relatively low melting and boiling points because covalent bonds are not as strong as ionic bonds, and it is the bonds which hold materials together in the solid, or more solid phases.
Why do molecular compounds have low melting points and low boiling points relative to ionic substances?
The melting points and boiling points of molecular covalent compounds (ones with discrete molecules) are lower than ionic solids and giant molecule covalent compounds like (silica, SiO2) because the forces that attract them together in the solid and the liquid states (van der waals, hydrogen bonding and dispersion forces) are weaker than ionic (or covalent) bonds.
What are two ways that a covalent bond differs from a hydrogen bond?
A covalent bond is an actual sharing of electrons, whereas a hydrogen bond is an attractive force due to electronegativities. A hydrogen bond also adjusts a molecule's boiling point upwards.
What type of bond does H20 have?
The hydrogen and oxygen in water mainly have covalent bonds. However there are some ionic bonds; otherwise, water would not have a pH. It also has some hydrogen bonding, which raises the temperature of its melting and boiling.
What has a low boiling point?
Simple hydrocarbons, like methane and ethane. As the carbon chain gets longer, the boiling point goes up. -------------- Some elements, such as helium, hydrogen, nitrogen and neon have extremely low boiling points. Please see the link.
The boiling temperature of water is so much higher than that of methane because water molecules are?
d.polarWater molecules are polar covalent and therefore form attractions between the molecules called hydrogen bonds. Much of the heat that goes into raising the temperature of water to its boiling point goes to breaking the hydrogen bonds first.
What is the boiling point of giant covalent?
The boiling point of Giant covalent is: 2230ºc
What is the boiling temperature for covalent compounds?
All different covalent compounds have different boiling points.
Why does sulfur dioxide have low boiling point?
It has a low boiling point because it has weak intermolecular forces in its covalent bonds
Which compounds has a low boiling point?
The lowest boiling are small covalent molecular compounds which do not have any hydrogen bonding and because they are small have weaker dispersion forces holding them together in the liquid state. Re,memebr its intermolecular forces that keep molecules together in the solid and liquid. (Not giant molecules such as diamond they are held together in the solid by covalent bonds.)
Why are the melting point and boiling point of a covaleny substance low?
The melting points and boiling points of molecular covalent compounds (ones with discrete molecules) are lower than ionic solids and giant molecule covalent compounds like (silica, SiO2) because the forces that attract them together in the solid and the liquid states (van der waals, hydrogen bonding and dispersion forces) are weaker than ionic or covalent bonds.
When Hydrogen sulfide is boiling is it a chemical or physical change?
It is a physical change. This is so because no new substance is formed. Hydrogen Sulfide is Hydrogen Sulfide wether it is boiling, at room temperature, or freezing.
Which has a higher boiling point CH3CH3 or CH3NH2?
CH3NH2 has the higher boiling point as it has a hydrogen bond between the molecule which is a stronger intermolecular attractive force, whereas CH3CH3 only has covalent bonds which are weaker intermolecular attractive forces.
Why is the boiling point of H2O higher than boiling point of H2S?
Because of hydrogen bonding. Oxygen, nitrogen, and fluorine have a high boiling point.
