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Length of hydrocarbon chain increases ---> BP increases Hydrogen bonding increases-----> BP increases Hydrocarbon branching increase ----> BP decreases Halogen size increases ----> BP increases Molecular weight increases ----> BP increases Dipole moment increases -----> BP increases
Wiki User
∙ 16y ago
Wiki User
∙ 14y agoStrong bounds raise boiling point temperatures. The thermal energy is necessary to break these bonds for boiling to occur.
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What are some properties of molecular compounds?
Simple molecular structures like H2O and CO2 have the following properties: 1) Physical state: usually liquids and gases at room temperature due to weak intermolecular forces 2) Melting and boiling points: low (below 2000 C) melting and boiling points due to weak intermolecular forces 3) Electrical conductivity: cannot conduct electricity because there are no free electrons 4) Solubility: insoluble in water, but soluble in organic substances such as petrol Macromolecular structures such as diamond and SiO2 have the following properties: 1) Physical state: hard solids at room temperature due to the many strong covalent bonds holding the atoms together 2) Melting and boiling points: high melting and boiling points due to the many strong covalent bonds that must be broken before the substance can change state 3) Electrical conductivity: cannot conduct electricity because there are no free electrons 4) Solubility: insoluble
Are Diamonds good electrical conductors?
No. "A lot of energy is needed to separate the atoms in diamond. This is because covalent bonds are strong, and diamond contains very many covalent bonds. This makes diamond's melting point and boiling point very high. There are no free electrons or ions in diamond, so it does not conduct electricity"(BBC).
Does water stay on a penny because of the ridge around it?
No. Water stays on a penny because of its cohesiveness due to water's strong intermolecular forces. These forces are due to its shape and properties as a polar molecule that is able to form Hydrogen bonds. The effect of the hydrogen bonds on a molecule this relatively small is very significant.
The attraction of water particles to each other?
Strong hydrogen bonds as the Oxygen is really electronegative and the hydrogen is really unelectronegative. The hydrogen bonds to the oxygen of another molecule.
What forces between water molecules are responsible for many of water's unusual physical properties?
hydrogen bonds
How does hydrogen bonding affect water molecule?
When the water freezes, the molecules within it start to expand. When the water boils, hydrogen bonding allows for a higher boiling point.
How will different bonds affect physical properties?
If you have a ond that is connected to many other bond,s then obviously it will hae ahigher boiling, and lower melting point. It will aslo be hard
Three physical properties of ionic solids that are linked to ionic bonds?
Crystalline structure at room temperature High melting and boiling points Exist as solids due to strong intermolecular force of attraction
Name some physical properties other than boiling point that are affected by the presence of hydrogen bonds?
color, size, shape, melting pint, boiling point
What are two properties of covalent bonds?
- covalent bonds involve electrons sharing- covalent bond is not so strong as ionic bond
Why does ethanol has a higher boiling point?
i think it's because there are strong covalent bonds needed to be broken.
Why transition metals have high boiling point?
Because the metallic bonds between their particles are very strong.
Why do esters have a high boiling point?
madd strong bonds, yo
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 does silicon dioxide have such a high boiling point?
The attraction forces or the attraction between the bonds is relatively high as opposed to H2O or water which the bonds aren't as strong giving it a relatively low boiling point (: I feel like that helped :D
What are three physical properties of ionic compounds that are associated with ionic bonds and related them to bond strength?
These are melting point, boiling point, hardness.
Why the boiling and melting point of metals are high?
Due to the fact that they have metallic bonds. This is the attraction between the delocalised( or free) electrons and positive ions and are strong so require a lot of energy to break (heat). So they can withstand a lot of heat before the bond starts to break and metals being to melt.
