Describe what happens on the molecular level when silica is heated and then cooled to make glass.

Q: What are the Silicate Ceramics? Give some examples? What are the uses of Silicate Ceramics?

A: Silicates are materials composed generally of silicon and oxygen. They were the first ceramics…

Q: What is the difference between the hardening process of Portland cement and the hardening process of…

A: Portland cement is a powdered mixture, and its hardening process is different from that of clays.…

Q: What is the difference between silicon and silicone?

A: Silicon  * Silicon is a naturally occurring chemical element. * It acts as metalloid that is it…

Q: How does adding water to the NaCl and SiO2 separate the two substances? What physical property is…

A: Filtration and distillation are physical separation methods that are based on the difference in…

Q: How is plaster of Paris chemically different from gypsum? How may these be inter converted? Write…

A: Gypsum is a sulfate mineral which contains calcium sulfate dihydrate. The chemical formula is…

Q: What are Oxide Ceramics? Give some examples?

A: INTRODUCTION: Oxide ceramics are the ceramics that are non-metallic mineral materials.

Q: Write amorphous carbon

A: Amorphous carbon is basically is reactive carbon which not  having crystalline structure.

Q: Classify each of the following as a conductor, insulator, or semiconductor: (a) phosphorus; (b)…

A: The given element has to be classified as conductor, insulator, or semiconductor.

Q: What is difference between the structure of diamond and graphite?

A:

Q: Draw a structure consisting of SiO4 units arranged in a chain with each unit sharing two of its…

A: Silicates are compounds of silicon and oxygen with a basic unit of  [SiO44-] Silicates are of…

Q: Why is boron oxide often added to silica glass?

A: Boron is used in glass manufacturing in the way that addition of boron oxide to glass help in…

Q: Explain the process of making an n -type and p -type semiconductor materials

A: p -type semiconductor : When a semiconductor ( Ge or Si ) is doped with electron deficient impurity…

Q: Describe the mechanism by which cement hardens when water is added.

A: Cement is binder substance used in construction of buildings. It is generally gray color substance.

Q: What are the three categories of ceramics?

A: The ceramic is a material formed by metallic or non-metallic solids submitted to thermal treatments.…

Q: Silica is utilized in part to make the CPU chip in a computer.

A:

Q: What is the types of glass. Give detail

A: Glass is a hard substance that is transparent or translucent in nature. It can be made by a fusion…

Q: Describe the effect compression testing have on thermal, electrical and physical properties of…

A: Silicon Nitride (Si3 N4 ) is one of the hardest materials used in ceramics. It has a hardness of 8.3…

Q: What is the definition of a ceramic?

A:

Q: Define the term Ceramics? Give some examples?

A: The materials that are resistant to corrosion, hard yet brittle is known as ceramics.

Q: What are Silicate Ceramics? Give some examples?

A:

Q: What is the difference between the hardening process of Portland ce-ment and the hardening process…

A: The major components of Portland cement include Silica, SiO2 and limestone, CaCO3. It also consists…

Q: Classify as n-type or p-type a semiconductor formed by doping (a) germanium with phosphorus, (b)…

A:

Q: Why are impurities added to silicon dioxide in the glass making process? To increase mechanical…

A: Impurities like boric oxide , sodium oxide and aluminium are used while making the glass

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: Mention the main compounds which constitute Portland cement.

A: Portland cement is a binding material in the form of a finely ground powder. It is usually gray in…

Q: Which statement explains why graphite is used as a lubricant? * O A All bonds between the atoms are…

A: Graphite is used as a lubricant. Give reason.

Q: Classify each of the following as a conductor, insulator, or semiconductor: (a) carbon (graphite);…

A: Conductors are those that allow the charge to pass through them while insulators don't allow the…

Q: What is the difference between SiO2 that is cooled slowly and SiO2  that is cooled quickly?

A: The rate of cooling has direct connections with the amount of crystallization. Slow cooling gives…

Q: How are metals used as semiconductors refined? What is the principle of the method used?

A: The metallic compounds which are found in nature, called as minerals whereas the minerals which can…

Q: 9. Which of the following statements are correct for ceramic materials? i. They are inorganic…

A: 9.Ceramic materials are inorganic materials consisting of a metal/semimetal and a non metal.…

Q: 9. Amorphous silica, SiO2, has a density of about 2.2 g/cm³, whereas the density of crystalline…

A: Answer - The amorphous material has less density then the crystalline material because the amorphous…

Q: Q3:- What are the types of defects in crystalline structure? Explain with example and with any kind…

A:

Q: Describe the difference between vitreous silica and soda-lime glass. What are some advantages and…

A: Vitreous silica is made from silica which is converted to glass. Soda lime in addition of silica…

Q: What are the various phases of SiO2?

A: The objective of the question is to write the various phases of SiO2.

Q: What are Non=Oxide-Ceramic? Give some examples?

A: Non-Oxide Ceramic Non-oxide ceramics are specialized Ceramics that are classed as inorganic,…

Q: What type of semiconductor is obtained when silicon is doped with arsenic?

A: Silicon belongs to group 14. It has atomic number 14 and has 4 valence e-. Arsenic belongs to group…

Q: Silica is utilized in the production of a computer's CPU chip.

A: Computer's CPU chip is made of silicon.

Q: Is gallium-doped germanium a p-type or n-type semiconductor?

A: Gallium-doped germanium is a p-type semiconductor.

Q: What is the main component of glass?a) Al2O3 b) SiO2 c) CaF2 d) SiC

A:

Q: Describe the features of Network Covalent Atomic Solids, Carbon and Silicates?

A: The features of Network Covalent Atomic Solids, Carbon, and Silicates have to be given.

Q: How can we convert glass into quartz?

A: Glass is an amorphous in nature while quartz is crystalline.Quartz can be converted into glass by…

Group 14 Elements

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