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The two hydrogen atoms in water molecule (H2O) are connected to the oxygen via covalent bonds, which means the hydrogen and oxygen share electrons.(The hydrogen-oxygen bonds are primarily covalent rather than ionic.).hat type of chemical bond is there in water?   The two hydrogen molecules and the oxygen molecule in water are joined by covalent bonding where they share the electron.
Because the oxygen atom in water has two lone pairs, water often acts as a Lewis base, or electron pair donor, in reactions with Lewis acids, although it can also react with Lewis bases, forming hydrogen bonds between the electron pair donors and the hydrogen atoms of water.