Mention the main compounds which constitute Portland cement.

Q: s of an unknown crystalline substance showed that it is hard, has a high melting point, and is…

A: The compound is hard, has a high melting point, and is non-conducting unless melted means it shows…

Q: SYNTHESIS: Prepare a sketch of water treatment and indicate the impurities removed in each stage

A:

Q: "Most explosive materials are based on a limited number of types of chemical reactions" Discuss this…

A: Explosive materials are those which are susceptible to a rapid chemical reaction. The chemical…

Q: Outline the type of defects in Crystalline structure

A: To outline the type of defects in Crystalline structure.

Q: Define the term Interstitial alloys?

A: Alloy is a mixture of more than one metal which has superior properties than any individual metal.…

Q: Explain how homogeneous and heterogeneous alloys differ. Describe the differences between…

A: An alloy is a uniform mixture. It is made up of two or more chemical elements, of which at least one…

Q: How different are saline soils from calcareous soils?

A: SOLUTION: Step 1: Calcareous soils contain free CaCO3, undissolved lime with a pH ranging from 7.3…

Q: Define the term hydraulic fracturing?

A: The term hydraulic fracturing has to be given,

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

A:

Q: What are Nonoxide Ceramics?

A: Ceramics are minerals which are non-metallic and inorganic in nature. It has huge variety, like…

Q: Name four oxides of nitrogen

A: A question to name four oxides of Nitrogen.

Q: Explain how the conductivity of electricity and the high boiling points of metals are explained by…

A: The conductivity of electricity and the high boiling points of metals are explained by a metallic…

Q: . Give the formula of the substance formed after the addition of water to sulfur dioxide.

A: The chemical formula of water is H2O and chemical formula of sulfur dioxide is SO2.

Q: Calculate the number of vacancies per cubic me￾ter in gold (Au) at 900C. The energy for vacancy…

A:

Q: Provide the following physical properties of Water: Heat fusion Surface tension Dielectric constant

A: To give: Physical properties of water.

Q: Which of the following compounds would you expect to have the lowest melting point? CaO H2O Na2O…

A: Ionic compounds with higher charges have higher melting point due to strong intermolecular forces…

Q: Describe the difference between vitreous silica and soda-lime glass.

A: Soda lime-glass is also known as soda lime silica glass. It contains 70% of SiO2 along with CaO and…

Q: How can slaked lime be mixed with a percentage of the water produced to form potassium hydroxide

A: Given that -  Reactant = slaked lime , Ca(OH)2 Product = potassium hydroxide , KOH    If water…

Q: List the major classes of minerals and discuss the main chemical characteristic of each class.

A: Minerals are classified based on their chemical constitution. Mineral resources are finite and…

Q: What do granite and basalt have in common?

A: Granite and Basalt are two of the major rocks found in the earth crust.

Q: Write the chemical equation of the reaction that takes place between hydrogen sulfide and the lead…

A:

Q: Have each group member select and study a material from the section on ceramics, cement, and glass.…

A:

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

A: The general formula of silica is SiO2 which melts on heating above 1500oC.

Q: Explain (i) The basis of similarities and differences between metallic and ionic crystals.

A: From given,  The basis of similarities and differences between metallic and ionic crystals is…

Q: What are some of the structural differences between quartz and amorphous SiO2?

A: A question based on solid state, which is to be accomplished.

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: Write the balanced chemical equation for the reaction of aluminum with iodine. Include phase…

A: The balanced chemical equation for the reaction of aluminum with iodine can be written as,

Q: Write the different types of alloys?

A:

Q: Which of the following is a covalent network solid? Ophosphorus brass barium hydroxide carbon…

A: Answer:- This question is answered by using the simple concept of covalent network solid which are…

Q: How is crude oil extracted from the crust? and what is the difference between asphalt and bitumen?

A: Crude oil (petroleum) is a black liquid that contains a mixture of combustible hydrocarbons and…

Q: Write the difference between ferromagnetism and anti-ferromagnetism.

A: In magnetic substances, when the metal ions are grouped together into small region, they form…

Q: How do atomic radius ratios relate to strength in alloys?

A: The smaller the atomic radius, the more influence the nucleus has on reactivity. Since the nucleus…

Q: If 20.15% of the atoms in a sample of tin are replaced by copper atoms without any change to the…

A:

Q: Whare are the aluminum oxide and magnesium oxide used?

A: The major uses of specialty aluminium oxides are in refractories, ceramics, polishing and abrasive…

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

A:

Q: Analyze the properties and applications of nanoparticles in modern chemistry. Discuss how…

A: Nanoparticles are particles between 1 and 100 nanometers in size. In nanotechnology, a particle is…

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…

Group 14 Elements

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