3. How many covalent bonds are there in one molecule of carbon dioxide. CO_(2) ddot (O)=C=ddot (O) A. 0 covalent bonds B. 2 covalent bonds C. 4 covalent bonds D. 6 covalent bonds

The correct answer is B. 2 covalent bonds.<br /><br />In a molecule of carbon dioxide (CO2), there are two covalent bonds between the carbon atom and each of the two oxygen atoms. Each covalent bond is formed by the sharing of two electrons between the carbon and oxygen atoms. Therefore, there are a total of 2 covalent bonds in one molecule of carbon dioxide.