What is coal liquefaction?

Q: What is the difference between a network solid and anionic solid?

A: Solution-  Ionic solids—formed by positive and negative ions and electrostatic attractions and held…

Q: What do amorphous forms of graphite include?

A: What do amorphous forms of graphite include has to be given.

Q: What are Liquid Crystals?

A: The solid material whose atoms are arranged in a definite order giving the formation of a lattice…

Q: List the types of Liquid Crystals?

A: Liquid crystals are those which has properties of both liquid and crystals.

Q: The atomic packing factor of a metal is 0.74. The density of the material is 8.97 g/cm and A = 58.69…

A:

Q: Please do surface tension, polar molecules, shape structure and transparent

A: Surface tension,polar molecule,shape and transparent property explain below.

Q: List the raw materials for making glass whilst stating their importance in glass making?

A:

Q: List the types of Liquid Crystal?

A: The characterization of the liquid crystal mobility and order on a molecular and at the…

Q: describe the follwoing? are dislocations nessesary or bad for us? additionally define 3 types of…

A: It's necessary. Dislocations play an essential role in the plastic deformations of crystalline…

Q: How does pressure and crystallinity affect density of a material?

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: How do you explain the statement: copper can contain up to 40% Zn and still be single phase?

A:

Q: Explain why water alone cannot be used to remove grease from a surface

A: Water & grease can't mix with each other due to hydrophobic (water heating)properly of grease…

Q: Briefly describe the proper technique for heating liquids in test tubes to temperatures below 100…

A: There are number of techniques for heating liquids in test tube. Some of these are: heating on…

Q: Give three (3) applications of surface tension in food and packaging industry.

A: Applications of surface tension characterization in the field of food materials science are…

Q: Name two elements that form molecular crystals, two thatform metallic crystals, and two that form…

A: The definition of crystals is basically any solid made of ions, atoms or molecules, which are…

Q: During the glass manufacturing process, the liquid must be cooled relatively quickly to form the…

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Q: What are the number of crystalline allotropes of carbon?

A: Properties of some chemical elements to exist in two or more different forms, in the same physical…

Q: Why do pressure cookers save time in the kitchen? Explain the effect of pressure on boiling point.

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Q: (a) Draw a picture that represents a crystalline solid at theatomic level. (b) Now draw a picture…

A: Please find below the pic of both the types of solid.

Q: What is packing fraction ?

A: A way of expressing the variation of isotopic mass from whole mass number (atomic mass) is defined…

Q: How does pressure and crystallinity affect density of a material?

A: Crystallinity and pressure affects the density of the material as follows.

Q: What is the dominant intermolecular force present in diamond ? Hydrogen bond London dispersion…

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Q: What is the two-dimensional coordination number of a molecule in a squareclose packed layer?

A: The word "closest packed structures" refers to the most closely packed or space-efficient…

Q: Sketch a diagram to illustrate the band structure of diamond, assuming no defects

A: The carbon atoms in diamond undergo hybridization and each carbon atom forms four sigma bonds with…

Q: Can carbon dioxide be liquefied at room temperature ( 20 °C )? If so, how? If not, why not?

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Q: Hydrogen bonding occurs between

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Q: What is the difference between an n-type semiconductor and a p-type semiconductor?

A:

Q: How are the properties of high-tech ceramics the same asthose of traditional clay ceramics, and how…

A: Ceramics are nonmetallic, inorganic materials that get permanently hardened on heating.  Traditional…

Q: What are the name and formula of the compound commonly used in the manufacture of glass to reduce…

A: Boron is a 13th group representative element lying in the second period of the periodic table.  It…

Q: PVC is an example of which type of solid?

A: PVC is polyvinyl chloride.

Q: what the bonding pattern among the molecules of dry ice and LNG?

A: Bonding patterns are the arrangements or natural settings in state of matter. how one atom interact…

Q: 10. The isotactic form of polypropane is

A: Answer: Option A  Polypropylene (PP) is a linear and saturated hydrocarbon polymer. Its standard…

Q: Which is NOT true about diamonds? a. Diamonds are stable even under extremely hot temperatures. O b.…

A: The explanation is given below-

Q: What is the coordination number of atoms in the diamond structure?

A: A diamond is a precious stone and crystalline form of pure carbon with its arranged atoms.

Q: Which type of solid has mobile electrons in the crystal (sea of electrons)?

A: Metallic soild (crystal)  It has been observed that in the metallic crystal or solid, the metals…

Q: 4. Although we nearly always fire-polish the ends of cut glass tubing (to minimize the risk of…

A:

Q: Explain in detail the process by which water gets “Hard” (formation of hard water).

A: Hard water is water that has high mineral content (in contrast with "soft water"). Hard water is…

Q: What is a polymorph?

A: Polymorphism is the concept of Material Science which is about the ability of a solid material…

Q: if we keep wet clothes in a plastic bag, they do not dry, while when we put them on the wire, the…

A: When wet clothes dry, the water from the clothes gets evaporated and the water vapour formed from it…

Q: As water cools, instead of moving closer together, the molecules hold each other at arm's length…

A: Since ice has less density than liquid water.

Q: 1. What are the principal natural processes that affect the petrophysical properties of sedimentary…

A: The main petro-physical properties of sedimentary rocks are thermal diffusivity, conductivity,…

Q: Non-crystalline ceramics deform by -

A: Noncrystalline ceramics(Amorphous ceramics) being glasses are usually formed through melting.

Group 14 Elements

The following elements come under group 14 of the periodic table.