Put questions to the bold-typed words, I. Diamond occurs naturally.
2. Graphiteis a good conductor of electricity.
3. The hardness results from the structure.
4. The crystalline allotrope is fullerite
5. Graphite can be produced by Acheson process,
6. Carbon occurs inorganic compounds.
7. The layers held together by weak van der Waals' forces.
8. Diamond is extremely hard.
9. There are several amorphous forms of carbon: carbon black and
charcoal.
boil
pro
10. Carbon forms a large number of compounds because of its
unique ability to form covalent bonds.
11. Graphite bas variety of uses including electrical contacts, high-
temperature equipment and solid lubricants.
is a soft black slippery substance.​

andreitwin    2   07.09.2020 23:16    4