Answer:
1. ✓
2.
3. ✓
4.
5. ✓
Explanation:
Explanation #1 Copper is a good conductor of heat. This means that if you heat one end of a piece of copper, the other end will quickly reach the same temperature.
Explanation in #2 Plastics are bad conductor of heat and electricity because they are not having free electrons. The free electrons help in conduction of heat and electricity.
Explanation in #3 Iron has metallic bonds which is where the electrons are free to move around more than one atom. This is called delocalization. Because of this, iron is a good conductor
Explanation in #4 Glass is a very poor heat conductor. It has one of the lowest possible heat conduction a solid (without air trapped in it) can possibly have, this is mostly due to its lack of ordered crystal structure. Since it's an insulator, the electronic contribution to the thermal conductivity is very small.
Explanation #5 Aluminum is an excellent heat and electricity conductor and in relation to its weight is almost twice as good a conductor as copper.
I provide an explanation for you to understand it more. God bless in your study! ❤️
