polar
There are no bonds between hexane molecules. There are intermolecular forces, called London Dispersion Forces which attract other hexane molecules.
hydrogen bonds
strong polar attractions between molecules involving h, f, o, and n
Water is composed of molecular bonds, but forms hydrogen bonds with other water molecules. Hydrogen bonds are not actual bonds, but they cause an attraction between the water molecules, which is why water is adhesive.
Bonds in molecules can be either covalent, ionic, or metallic. Covalent bonds involve the sharing of electrons between atoms, ionic bonds involve the transfer of electrons from one atom to another, and metallic bonds involve the sharing of electrons between all atoms in a metal structure.
Water is composed of molecular bonds, but forms hydrogen bonds with other water molecules. Hydrogen bonds are not actual bonds, but they cause an attraction between the water molecules, which is why water is adhesive.
The attraction between the same kind of molecules is called cohesion. This attraction occurs due to intermolecular forces such as hydrogen bonding, dipole-dipole interactions, or van der Waals forces. Cohesion helps to hold molecules together, giving rise to properties like surface tension and viscosity.
When HCl vaporizes, the bonds that are broken are the ionic bonds between hydrogen and chlorine in the HCl molecule. These bonds are broken as the molecules transition from a liquid to a gas state.
Alcohols can form hydrogen bonds between individual molecules. These hydrogen bonds are attractions between the partially positive hydrogen atom of one molecule and the partially negative oxygen atom of another molecule. This plays a significant role in the physical and chemical properties of alcohols.
Chemical energy is energy stored in chemical bonds between atoms. Energy stored in fossil fuels is an example of potential energy.
Carbon and oxygen can form multiple types of bonds, including covalent bonds (in molecules like carbon dioxide), polar covalent bonds (in molecules like carbon monoxide), and ionic bonds (in compounds like carbonates). These bonds are dependent on the arrangement of electrons and the electronegativity difference between carbon and oxygen.
Ionic and covalent bonds are both chemical bonds formed by either sharing or transferring electrons. Hydrogen bonds are technically not a kind of chemical bond but a kind of intermolecular attraction between polar molecules in which hydrogen is bonded to one of the very electronegative elements nitrogen, oxygen, or fluorine.