Search results
21 paź 2020 · To understand why a water molecule is polar, while similar-seeming molecules (e.g., carbon dioxide or CO 2) are not polar, you need to understand the roles of electronegativity and molecular geometry in polarity.
Carbon dioxide \(\left( \ce{CO_2} \right)\) is a linear molecule. The oxygen atoms are more electronegative than the carbon atom, so there are two individual dipoles pointing outward from the \(\ce{C}\) atom to each \(\ce{O}\) atom.
The polarity of water is due to the differing electronegativities of hydrogen and oxygen. As a consequence, hydrogen bonds are formed when the slightly negative oxygen on one water molecule is attracted to the slightly positive hydrogen of another water molecule.
18 paź 2020 · Carbon dioxide \(\left( \ce{CO_2} \right)\) is a linear molecule. The oxygen atoms are more electronegative than the carbon atom, so there are two individual dipoles pointing outward from the \(\ce{C}\) atom to each \(\ce{O}\) atom.
16 kwi 2023 · Carbon dioxide, CO 2, is a linear molecule. The oxygen atoms ( EN=3.5 ) are more electronegative than the carbon atom ( EN=2.5 ), so there are two individual arrows pointing outward from the central carbon atom to the oxygen atoms on each end.
30 lip 2024 · Remind students that the oxygen-hydrogen (O–H) bonds in water make it a polar molecule. This polarity makes water molecules attracted to each other. Explain that the oxygen–hydrogen (O–H) bond in the alcohol molecule is also polar. But, the carbon–hydrogen (C–H) bonds in the rest of the alcohol molecule are nonpolar.
Draw dot and cross diagrams to illustrate the bonding in the following covalent compounds. If you wish you need only draw the outer shell electrons; (2 marks for each correct diagram) Water, H 2 O; Carbon dioxide, CO 2; Ethyne, C 2 H 2; Phosphoryl chloride, POCl 3; Sulfuric acid, H 2 SO 4
