structure of water and hydrogen bonds

• water is made up of hydrogen and oxygen
• water is held together by polar covalent bonds
• a covalent bond is a bond that exists among two molecules
• a polar bond is a bond that exist as a result of unequal sharing of electrons between atoms
• hydrogen is a positive electron and oxygen is a partially negative electron.
• a hydrogen bond is a weak bond that exists among two separate molecules
• cohesion is the hydrogen bonds that exist among two molecules of the same type
• adhesion is the hydrogen bond that exist between two different molecules
• surface tension is the hydrogen bond that exist on the surface
• water's high specific heat capacity means it takes longer to change temperature compared to other liquids
• water can dissolve many substances due to its polarity and ability to form hydrogen bonds with other polar or ionic compounds
• water has a low density at its freezing point, which allows ice to float on liquid water
• the polarity of water makes it an excellent solvent for polar substances such as salts and sugars
• water can dissolve many gases due to its polarity
• the boiling point of water is higher than other liquids because it has more intermolecular forces, which requires more energy to break them apart
• the boiling point of water is higher than most other liquids because of intermolecular forces
• chemical bond is an attraction that exist between two atoms
• electronegativity is the ability of atoms to attract electrons in a covalent bond
• the equal sharing of atoms is a nonpolar covalent bond
• an ionic bond is created when two ions with opposite electrical charges associate with each other because of difference in charge
• chemical reaction is a process by which atoms or molecules are transformed into different molecules
• molecules changed in a chemical reaction become a reactant
• a product is a molecule formed from a a chemical reaction
• Carbon is the backbone of organic molecules and is found in all living things
• four classes of organic molecules: carbohydrates, lipids, proteins, nucleic acids
• polymer is a large molecule made up of many small molecules called monomers