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

Q: Explain how zeolites that contain sodium ions can be used to soften water.

A: Zeolites are often used to soften water

Q: Why is solid carbon called dry ice

A: CO2  is the molecular formula of dry ice , it exist in solid form , basically solid CO2 is dry ice

Q: Indicate whether each statement is true or false:(a) Elastomers are rubbery solids.(b) Thermosets…

A: True, Elastomers are rubbery solids.they have elastic property. These polymer chain are held…

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 type of bonding would you expect in Silicon nitride? explain the answer and what kind of…

A:

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: explain why graphite is a good solid lubricant

A: Why graphite is a good solid lubricant ?

Q: Give four challenges and suggest solutions for those challenges in Acidizing & Fracturing?

A: Cracking is a technique used in oil refineries whereby large and complex hydrocarbon molecules are…

Q: Define the terms monomer, plastic, thermoplastic, thermosettingplastic, elastomer, copolymers, and…

A: Polymer chemistry is the branch of chemistry which involves the study of synthesis, bonding,…

Q: What is coal liquefaction?

A: Coal liquefaction has to be given below.

Q: Write amorphous carbon

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

Q: How is concrete made from Portland cement?

A: Tricalcium silicate, dicalcium silicate, tricalcium aluminate and tetra-calcium aluminoferrate are…

Q: Which variables must be contolled and in what manner to produce Diamond from Graphite?

A: Carbon exists in three forms as follows: Graphite Diamond Fullerene Diamond is the hardest form of…

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: what are p type and n type semiconductors?

A: p-type semiconductor:  A dopant with lesser electrons than its host forms a narrow band that gets…

Q: What are the characteristics of FCC?

A:

Q: What do Doped semiconductors contain?

A: Semiconductors has a conductivity power in between insulators and conductors. The conductivity power…

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: explain why diamond is a very hard substance and graphite (e.g. pencil ‘lead’) is very soft.

A: The solution is given below -

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: Define the term Ceramics? Give some examples?

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

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: for what purpose polyphosphates are used ?

A: The esters or salts of polymeric oxyanions in which phosphate groups are attached tetrahedrally and…

Q: Draw the structures of isotactic poly(acrylonitrile) and syndiotactic polystyrene.

A: The structures of isotactic poly(acrylonitrile) and syndiotactic polystyrene are given below,

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: The lithosphere A. is below the mantle B. is not a part of the earth's crust C. does not contain…

A: The lithosphere is composed of the crust and the mantle. Correct answer is (D).

Q: In which direction along the periodic table does thermal conductivity generally increase?

A: Thermal conductivity does not show regular increase or decrease in periodic table.In every group and…

Q: Coal and diamond are two different forms of carbon, which is denser?

A: The arrangement of carbon in diamond atom is more tightly packed as the structure of diamond is such…

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: Which of the following explains the conditions that make it possible for the mantle to flow, even…

A: The mantle flows because of convention currents that are caused by very hot material in the mantle…

Q: Why is graphite soft lubricant and good conductor of electricity?

A: Graphite is a non metal having two dimensional sheet like structure where each carbon atom uses sp2…

Q: What is the most important property of elastomers?

A: Elastomers are defined as polymers that have viscoelasticity that means they exhibit viscosity as…

Q: List the major and minor components of Portland cement. What is the difference between the hardening…

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

Q: Define the term Semiconductor Type? Which element would you dope into germanium to create a p-type…

A: Conductor: Conductors are materials that allow flowing of heat and electricity through them due to…

Q: How

A: Dear student I have given answer to your question in the image format.