Ugljik Pt. 2 Flashcards
(15 cards)
What is the color and transparency of graphite?
Graphite is a solid, opaque substance that is gray-black in color.
What are the physical properties of graphite?
Graphite has a metallic luster, is soft, and feels greasy to the touch.
What is graphite’s electrical conductivity?
Graphite is a good conductor of electric current.
What are the uses of graphite?
Graphite is used in the production of electrodes and in making containers for melting metals due to its high melting point.
What are the properties of diamond?
Diamond is colorless, transparent, and has a melting point of 3800°C.
What is the melting point of graphite?
Graphite has a melting point of 3730°C.
How does the electrical conductivity of diamond compare to graphite?
Diamond is an insulator, while graphite is a good conductor.
What are fullerenes?
Fullerenes are allotropes of carbon that can be spherical or tubular in shape.
What is the structure of the most common fullerene (C60)?
C60 consists of 60 atoms arranged in pentagons and hexagons, resembling a soccer ball.
What are carbon nanotubes?
Carbon nanotubes are tubular fullerenes.
What are the applications of carbon nanotubes?
They are used in electronics for producing components like transistors and microchips, as well as in medicine and chemical technology.
What is the carbon cycle?
The carbon cycle is the process by which carbon circulates in living and non-living parts of nature.
What processes are involved in the carbon cycle?
The carbon cycle includes processes like photosynthesis, respiration, combustion, and carbonization.
What is the mass of one carat of diamond?
One carat equals 200 mg.
What is the mass of the Regent diamond in grams?
The Regent diamond weighs 27.3 grams (136.5 carats).
