A molecule made up of two hydrogen atoms and one oxygen atom is a water molecule H2O . In a water molecule, there are two O-H bonds. To determine the bond strength, we need to find the bond energy of these O-H bonds.Bond energy is the energy required to break a bond between two atoms. It is usually expressed in kilojoules per mole kJ/mol . The bond energy of an O-H bond in a water molecule is approximately 467 kJ/mol. This value is an average bond energy, as the actual bond energy can vary depending on the specific molecule and its environment.To calculate the total bond strength of the water molecule, we need to consider both O-H bonds:Total bond strength = 2 O-H bond energy Total bond strength = 2 467 kJ/molTotal bond strength = 934 kJ/molThe bond strength of a water molecule is 934 kJ/mol.There are several factors that affect bond strength, including:1. Electronegativity: The difference in electronegativity between the two atoms in a bond can affect bond strength. In the case of the O-H bond, oxygen is more electronegative than hydrogen, which leads to a polar covalent bond. This polarity contributes to the bond's strength.2. Bond length: The distance between the two atoms in a bond can also affect bond strength. Generally, shorter bonds are stronger than longer bonds. In a water molecule, the O-H bond length is approximately 0.96 angstroms, which is relatively short and contributes to the bond's strength.3. Bond order: The number of bonds between two atoms can also affect bond strength. Single bonds are generally weaker than double or triple bonds. In the case of the O-H bond in a water molecule, it is a single bond.4. Molecular geometry: The arrangement of atoms in a molecule can also influence bond strength. In a water molecule, the bond angle between the two O-H bonds is approximately 104.5 degrees, which is a result of the bent molecular geometry caused by the presence of two lone pairs of electrons on the oxygen atom. This geometry helps to distribute the electron density in the molecule, which can affect bond strength.In summary, the bond strength of a water molecule made up of two hydrogen atoms and one oxygen atom is 934 kJ/mol. This value is influenced by factors such as electronegativity, bond length, bond order, and molecular geometry.