Explain why hydrogen bonding occurs between water molecules
Water molecules have a molecular formula of H2O. The O-H bond in water is a polar bond. This is because there is a big difference in electronegativity between the oxygen and the water. It is known that oxygen is very electronegative, therefore it attracts the electrons creating a polar bond. This means the oxygen is slightly negatively charged and the hydrogen is slightly positively charged. This allows for hydrogen bonding to occur between oxygens and hydrogens of different water molecules. Hydrogen bonding is an intermolecular force and this means it directly affects the physical properties of the molecule.
MA
Related Chemistry A Level answers
All answers ▸Name and Outline a mechanism for the formation of methylpropanoate from methanol and propanoyl chloride.
Explain electrophilic aromatic substitution?
Given the following equilibrium: H2O + H2O <-> H3O+ + OH- and the Kw = 10^-14, determine the concentration of OH- species after the addition of 1 mmol of HCl to 1 L of neutral water.
Order the following in terms of boiling point and explain your reasoning: Ethanol, Ethane, Propane