Compare the metallic bonds of copper with the ionic bonds of copper sulfide.?

Question

1.why are metals rather than ionic solids used in electrical wiring?

2.Explain why proteins and carbohydrates are polymers. what is each polymer made of?

3.The lenght of a bond depends upon its type. Predict the relative lenghts of the carbon-carbon bonds in the following molecules, and explain your reasoning.

H H H
| \ / H-C=C-H
H- C - C -H C=C _
| H/ \H
H
Ethane Ethene Ethyne

Answer 1

In metallic bonding, the electrons are free to move. In ionic bonding, the ions are fixed, and are not free to move.
Polymers consist of long chains of C atoms, joined by N atoms (in the case of proteins) and O atoms (in carbohydtrates).
The C-C bond in ethane is longest, and in ethyne shortest. This is because of the increasing number of electrons in the bond

Answer 2

Metallic Bonding In Copper