11. Ionic bonds may be seen as extreme examples of polarization in covalent bonds . 12. Bonds with partially ionic and partially covalent character are called polar covalent bonds . 13. Covalent bonds are better understood by valence bond theory or molecular orbital theory.14. Chemically, Silane forms a covalent bond within porous masonry that clots surface pores. 15. A polar covalent bond is a covalent bond with a significant ionic character. 16. The atoms are much more strongly bound with a covalent bond . 17. They form stable products with soft bases, which are bases with covalent bonds . 18. Unlike pure ionic bonds, covalent bonds may have directed anisotropic properties. 19. These covalent bonds between peptide chains confer extra toughness and rigidity. 20. Through these covalent bonds , the property of the solution is changed.
