Characteristic shapes and bond angles within covalent molecules

Covalent compounds are generally insoluble in water. This is shown by the fact that our proteins, skin and cell materials do not dissolve in the rain Covalent compounds can dissolve in other covalent liquids like oils or fats. Thus the effectiveness of any medication containing covalent or ionic molecules depends upon their solubility, the type of molecules present in the drug, and the parts of the cells being targeted. Some medications are water-soluble (usually containing ions) while others are fat-soluble (usually containing covalent molecules). 

4 Characteristic shapes and bond angles within covalent molecules 

All covalent bonds have their own characteristic bond angles. These influence the shape of any covalent molecule. The molecules can freely twist about any single bonds, e.g. C—C H—H C—H, O—H, but not about any double bonds, e.g. C=0 or C=C. 

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CHARACTERISTIC SHAPES AND BOND ANGLES WITHIN COVALENT MOLECULES... 

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