Chemical bonding questions | form five Chemistry

Use the following chemical structures of ethane and ethene molecules to answer the questions that follow.

1. What are the hybridizations of carbon atoms in each compound?
2. Use well labeled diagrams to describe types of C-C bonds in each compound.
3. In ethane molecule , each C-H has a bond length of 1.09À and C-C has bond length of 1.54À. Briefly explain this observation.
4. The C-C double bond in ethane (bond length 1.34À) is shorter than C-C single bond in ethane (bond length 1.54À). Breifly explain this observation.

Answer / Solution

UNSOLVED

In chemical bond formation, the ionization enthalpy and electron affinity are involved. Briefly describe how:

1. Ionic bond formation is favoured by ionization enthalpy and electron affinity.
2. Covalent bond formation is favoured by ionization enthalpy and electron affinity.

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UNSOLVED

Briefly describe the following phrases. Give one example of a chemical structure for each:

1. Hydrogen bond.
2. Coordinate covalent bond.

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UNSOLVED

Classify the bonds in the following compounds as ionic, polar covalent or covalent.

1. HCl(g)
2. NaCl(s)
3. NCl₃
4. Methane
5. Tetrachloromethane
6. CO₂

Answer / Solution

UNSOLVED

For each of the following compounds , show from electron configuration the type of hybrid orbital of the underlined atom and draw the geometry of the corresponding molecule.

1. BeCl₂
2. CCl₄
3. C₂F₄

Answer / Solution

UNSOLVED