In Section 5.6, we learned that triple bonds are stronger and shorter than single bonds. For example, a C- Csingle bond has an average bond energy of 347 k. J/mole, while a C C triple bond has an average bond energy of 837 k. J/mole. Use valence bond theory to explain why a triple bond is not simply three times as strong as a single bond. A) The C C triple bond is an exception. According to valence bond theory, a triple bond is generally three times as strong as a single bond. B) Because according to valence bond theory, a triple bond is the sharing of four electron pairs.
C) Because according to valence bond theory, a triple bond is actually composed of two different kinds of bonds, one σ and two π

Because according to valence bond theory, a triple bond is actually composed of two different kinds of bonds, one σ and two π

Explanation:

The respective bond a energies of C-C single, double and triple bonds are; 347KJmol-1, 681 KJmol-1 and 837 KJmol-1 respectively.

It can be seen that the bond energy of a triple bond is really not thrice the bond energy of a C-C single bond. This is because, a triple bond is composed of two different kinds of bonds. A C-C sigma bond and two C-C pi bonds. The C-C sigma bonds are stronger than the C-C pi bonds because sigma bonds result from a greater degree of overlap between the atomic orbitals involved in the bond.

Hence, the C-C triple bond energy is not simply three times that of the C-C single bond energy since there are actually two different kinds of bonds present as explained above.

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.

the answer is c.the valence of the atoms combine .