OdehEveryday
Answered

I have a few questions.


When bonded with four hydrogen atoms, carbon has which shape?

Abent
Blinear
Ctetrahedral
Dhexagonal

All of the following are characteristics of diamonds except which of these?

ADiamonds are dense.
BDiamonds are colorless.
CDiamonds are able to conduct heat.
DDiamonds are the softest materials known.

All of the following statements are true of graphite except which of these?

AGraphite is used in pencils.
BGraphite is a decent conductor of electricity.
CGraphite is the hardest material known.
DGraphite is used in lubricants, sporting goods, and aircraft.

Graphite is able to conduct electricity due to

Aionic bonds.
Bmetallic bonds.
Cdelocalized electrons.
Dits rigid structure and density.

Verified Answer :

  1. Tetrahedral
    2. diamonds are the softest materials known is not true
    3. graphite is not the hardest known material
    4.  delocalized electrons.  The reason why I did not say metallic bonds is that carbon is not a metal so I don't think it can be considered a metallic bond even though it has the properties of metallic bonds.  Also, I think the structure of graphite is not like the structure of a metal since it is made up of layers.
    I hope this helps. let me know in the comments if anything is unclear.

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