Write chemical names and formula of plaster of paris and gypsum?

Q: What is hydrometallurgy? Give one example where it is used for metal extraction.

A: The definition of hydrometallurgy with an example has to be discussed,

Q: a copper sample of mass 500g and purity 80% reacts with dilute nitric acid. a) Write the chemical…

A: Given that: Total mass of copper = 500g  The purity of copper = 80 % To find: chemical equation…

Q: Give the monomers of bakelite.

A: Bakelite is a polymer of phenol and formaldehyde. The formation of Bakelite from its monomers is…

Q: Impurities of copper, bismuth, lead in the silver nitrate drug are determined with one reagent: A)…

A:

Q: Synthesis and purification of cobalt(II) sulphate (CoSO4.7H2O)

A: There are various methods through which Cobalt(II) sulfate heptahydrate (CoSO4. 7H2O) can be…

Q: (a) Discuss how the hard water can be serious issue for the domestic and the industrial usage?…

A: Issues- =>Hard water is unfit for washing as it is difficult to form lather with soap. ( wasting…

Q: Sketch the silicon–oxygen tetrahedron and explain how these fundamental building blocks join…

A: Complexions [SiO4]4- having a net charge of -4, to become electrically balanced, these complexions…

Q: colbalt (II) phosphate octahydrate

A: Molecular Formula of cobalt (II) phosphate octahydrate is given by,

Q: Discuss the following sentences: 1- In alumina manufacturing, calcination process is preferred…

A: Discussing the following statements.

Q: The minority carriers in p-type semiconductors are

A: Doping is the process by which conductivity of a semi conductor increases. When an element of group…

Q: What are some advantages and disadvantages of vitreous silica and soda-lime glass?

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

Q: Define the term pyrometallurgy?

A: Pyro means “heat or temperature” and metallurgy is the branch of science which concerned with the…

Q: 4. State the difference between cleavage and fracture of minerals, using quartz and mica as…

A: Since you have posted a question with multiple subparts, we will solve the first subparts for you.…

Q: Write the formula of, the clay kaolinite?

A: Kaolinite is clay with earthy texture and soft reliability. It is white in color and made by…

Q: likely to be silicon doped with Antimony Sb?

A:

Q: What happens to the blade as it was placed on water, kerosene, and ethanol? Differentiate them. Why…

A: Surface tension is caused by the effects of intermolecular forces at the interface. Surface tension…

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: How are the silica tetrahedrons linked for ZrSiO4? Which class of silicates does this compound…

A: The way how silica tetrahedrons linked for ZrSiO4 are shown as follows,

Q: how precipitation helps in extracting magnesium from sea water

A: Magnesium chloride is naturally extracted by seawater by precipitating it to magnesium hydroxide.…

Q: Discuss the preparation, properties and uses of (a) Celluloid

A: Celluloid is made from a mixture of chemicals such as nitrocellulose, camphor, alcohol, as well as…

Q: Purification methods of cobalt(II) sulphate (CoSO4.7H2O)

A:

Q: How can you separate alumina (Al2O3) from silica present in bauxite ore? Write the chemical…

A: Filtering of aluminum from bauxite: Finely powdered bauxite metal is processed with a watery…

Q: Question (4) a- Write the benefits of recycled paper? b- What is the properties of fused silica? c-…

A: Benefits of Recycled paper: Paper recycling saves a lot of energy and water, reduces tree felling.…

Q: Type of silicate mineral Anion Formula Do not include OH- Anion Charge  (If it is 0 then make…

A: A silicate is any member of a family of anions consisting of silicon and oxygen, usually with the…

Q: MCQ 19: Group IV clement that acts as an insulator is A. Carbon (Diamond) B. Tin (Sn) C. Lead (Pb)…

A: The energy gap between valance band and conduction band determines wheather an element will conduct…

Q: What is the role of methanol in the deposition of thin films of semiconductor materials via Aerosol…

A:

Q: Chemistry please explain: what is the difference between the composition of hydroxyapatite and…

A: The naturally occurring substances from which elements/metals can be extracted are called ores.…

Q: What are n-type semiconductors?

A: A n-type semiconductor is defined as a type of extrinsic semiconductor which is doped with a…

Q: Match the following terms to their definition. * Highly Treated Sorption Leaching Soda lime…

A:

Q: Roles of carbon IV oxide in soft drinks

A: Carbon (IV) oxide is a chemical compound with the formula CO2. It is commonly known as carbon…

Q: Silicones are classified as O a. Elastomers O b. Cast iron O c. Thermoplastics O d. Ceramics

A: Silicones is synthetic elastomer that show viscosity and elasticity.

Q: (i) Indicate the principle behind the method used for the refining of zinc.(ii) What is the role of…

A: The process of extraction of metals ( in pure form) from minerals is termed metallurgy. Minerals may…

Q: Q2.(d) Explain why ultra-pure substrate materials and stringent health and safety requirements are…

A: Fabrication of semiconductor materials takes place in a cleanroom.While silicon-based semiconductor…

Q: Draw the structure of SF6

A: Sulfur is the central atom that is bonded with six fluorine atoms; the molecular geometry of XY6 is…

Q: How do calcium ions in water affect the textural properties of products during cooking in water?…

A: Hardness in water is due to the presence of dissolved salts of calcium and magnesium. It is unfit…

Q: If 55 g of SiO2  glass is placed into 111 L of 0.032 M HF, is there enough HF to dissolve all of the…

A: The balanced equation for the reaction is given below.

Q: What is the disadvantage of soda-lime glass?

A: Given: To explain the disadvantage of soda-lime glass

Group 14 Elements

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