Question

Wethance ethane, and the other moleules ore Consiling bonding because they share electran Provide an example of ionic bonding and provide an example of covalent bonding- [2 points] Teeyond. he example (Na) and el for the ionic bond and for the covalent band is. Steps 3.1 to 3.6 (CH) are methance Is the conformation of ethane staggered or eclipsed after the instructions in Step 3.17 Record the calculated energy of this configuration (include units)? 12 points] Is the conformation of ethane staggered or eclipsed after the instructions in Step 3.2? Does this configuration have a higher or lower energy than the configuration in Step 3.1? 12 points] Energy 19.8218 kJ/mole Which conformation of ethane is more stable (staggered or eclipsed)? Explain why this confor- mation is more stable than the other one. 3 points) E- 1374 Steps 4.1 to 4,8 Note: Use the Table on page 121 to determine Electron-Domain Geometry and Molecular Shape. Record the bond lengths and bond angles of CO2; include units [1 point each) Bond Length Bond Angle 0-C 0-CO

Answer 1

The bonding between Na and Cl in NaCl is an example for ionic bonding

The bonding between C and H in Methane or CH₄ is an example for covalent bonding

In ionic bonding, one of the atoms transfers its electron completely to another atom. This is due to high electropositivity and electronegativity of atoms participating in the bond formation. The removal of an electron from an atom makes it a positively charged species and gaining of an electron by another atom makes it a negatively charged species.

Thus it results in the generation of counter charged ions. Now these counter charges attract by electrostatic attraction. This electrostatic force of attraction is nothing but the ionic bond.

For example in NaCl, Na losts its outermost electron to Cl and becomes Na⁺ and Cl gains one electron from Na and turns to Cl^-. The attraction between Na⁺ and Cl^- results in the formation of ionic bond in NaCl.

Covalent bond is a bond which is formed by the sharing of electrons between atoms in a molecule. All the four C-H bonds in methane are covalent bonds. The C-H bond pair of electrons are shared equally among carbon and hydrogens. Such type of bonds are called covalent bonds.