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What is a very hard crystalline rock?
Diamond is a very hard crystalline rock, composed of carbon atoms arranged in a tight, compact structure. It is known for its exceptional hardness and is often used in jewelry and cutting tools due to its durability.
Scientific name of timber yielding plant belonging to the family dipterocarpaceae?
Shorea robusta, commonly known as Sal tree, is a timber-yielding plant belonging to the family Dipterocarpaceae. It is native to the Indian subcontinent and Southeast Asia and is valued for its hard, durable timber.
What is a black non metal with three allotopes diamond. graphite and charcoal?
The black non-metal you are referring to is carbon. It has three well-known allotropes: diamond, which has a crystalline structure and is extremely hard; graphite, which consists of layers of carbon atoms and is used in pencils and lubricants; and charcoal, a porous form of carbon made from the incomplete combustion of organic materials. Each allotrope exhibits distinct physical properties and uses, despite being composed of the same element.
What are some of the differences between allotropes of carbon?
the crystalline allot-ropes of carbon are Diamond and Graphite their differences are,Diamond1- every carbon is sp3 hybridized and tetrahedraly attached to four other carbon atoms at the angles of 109.5, 2- No free electrons, so nonconductor of electricity, 3-Hardest natural material due to absence of any cleavage axis.Graphite1- every carbon is sp2 hybridized and trigonaly attached to three other carbon atoms at the angles of 120, 2- one free electron (weakly held through pi bonding) per atom so is conductor of electricity, 3- soft material due to presence of cleavage axis along sheet like structure.
Why do we use some solids crystals in daily life?
Making steel, steel is definitely crystalline. Making eggnog, eggs are crystalline. Making hard tack candy, making fudge although sugar is considered noncrystalline, you are varying the phases of sugar to include one large sugar crystal to get hard tack and annealing the fudge to avoid the formation of sugar crystals.
What is a very hard crystalline rock?
Diamond is a very hard crystalline rock, composed of carbon atoms arranged in a tight, compact structure. It is known for its exceptional hardness and is often used in jewelry and cutting tools due to its durability.
What does diamond mean?
diamond is a form of carbon or also known as allotrope of carbon. An extremely hard, highly refractive crystalline structure that is usually colorless and is used as a gemstonei diamond means i love you, and that you mean a lot to me.
Is NaC1 hard or soft?
There is no such thing as NaC1. NaCl (with a lowercase L) is a hard, crystalline substance.
What is the difference between charcoal graphite and diamond?
Diamonds are very hard, and graphite is very soft.
The Igbo valued and industry in life?
Hard Work
Why is diamond extremely hard but grahite is extremely soft?
It is a difference in the crystalline structure.
Is carbon soft?
The hardness or softness depends on which state the carbon is in. Carbon can be found in coal and graphite (which isn't very hard) , but it can also be found in diamonds......which are.....hard.
Why is diamond such a hard ad nonreactive substance?
Carbon atoms can bond to other carbon atoms in a variety of ways, but when they bond in a network, with all the atoms bonding to all the other atoms that surround them, it is a very strong bond, stronger than the bonds formed in other minerals. Strong bonds are, by definition, hard to break. Hence the material is very hard. Scratching it requires breaking bonds.
What mineral is a hard abrasive?
Corundum - Crystalline Aluminium Oxide (Al2O3) is a mineral that is hard (9.0 on Mohs scale) and used as an abrasive.
Which property best describes a piece of quartz?
It is a hard crystalline compound of silicon and oxygen.
Was the native Americans life hard or easy?
The native Americans life was hard because they had to get food and build homes
Why is it hard for historians to find out about native Americans?
It is hard because, most of the history of the native Americans has diapered with most of there culter.
