Give two uses for each of these and in each case explain how structure and bonding makes it suitable for the application.
Also does anyone know why ice is less dense than water? Is it because of all the crystals that form?
2007-01-22 00:33:30 · 9 answers · asked by helenlouisewelsby 1 in Science & Mathematics ➔ Chemistry
Uses=Graphite is used in pencil leads and as a lubricant in machine. Diamonds are used in jewelery. Diamonds are also used to cut diamonds.
Structure=Graphite is made of carbon hexane rings. Whereas diamonds are also made up of carbon atom. But they are strongly bonded to each other with covalent bonds.
Ice is less denser than water because of it's cage like structure.
I hope this helps!!
2007-01-22 00:58:08 · answer #1 · answered by smart-crazy 4 · 0⤊ 0⤋
Graphite and diamond, both are made of carbon. Conversion: Graphite can be transformed into diamond by applying a pressure greater than 1,00,000 times the atmospheric pressure at the sea level and by burning at a temperature of about 3,700°C. These conditions of temperature and pressure help in rearranging the atoms of carbon in graphite into a diamond structure.
2016-05-24 16:43:48 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I'll not answer your diamond and graphite question. It is your homework after all.
But as for your ice question, Ice is less dense than water because of the hydrgen bonds between the water molecules. As the temperature drops, the hydrogen bonds become stronger, and, unusually, slightly longer.
Therefore, when the temperature drops, the water molecules grow further apart, and so the same mass of water becomes less dense.
2007-01-22 02:34:49 · answer #3 · answered by Bloke Ala Sarcasm 5 · 0⤊ 0⤋
Graphite: used in pencil lead, used in plastics to form metalics (i.e. graphite framed bicycles). It's bonding is flexible, but not elastic. It's composition is flaky
Diamonds: are used in construction drills and other applications... see the links below...
2007-01-22 01:06:06 · answer #4 · answered by sagegranny 4 · 0⤊ 0⤋
Graphite-lubricant- layered atomic structure means atoms able to slip over one another
diamond- cutting disks, strong covalent bonds make it a strong reinforcment for the cutting edge.
2007-01-22 00:39:33 · answer #5 · answered by the_immortal89 2 · 0⤊ 0⤋
Whilst you may feel this forum is an appropriate place to post your Homework, most us feel you should do your own research ...
1) Chances are, teacher has already given you the answers in class - check your notes.
2) Try Wikipedia...
2007-01-22 00:43:53 · answer #6 · answered by Steve B 7 · 0⤊ 0⤋
Do your own homework!
They are 3 of the easiest questions to be asked on crystal structure.
Spend five minutes looking it up on the internet or look it up
2007-01-22 00:46:00 · answer #7 · answered by I8myjob 3 · 0⤊ 0⤋
Graphite is used in pencils, nuclear reactors and as lubricants.
Diamonds are used for cutting, drilling and as jewellery.
2007-01-22 01:09:26 · answer #8 · answered by ag_iitkgp 7 · 0⤊ 0⤋
it expanse so if you have a cup of water filled almost to the top, when it freezes it will expand to the top.
2007-01-22 00:39:31 · answer #9 · answered by Earth to Mars 5 · 0⤊ 1⤋