How is molten glass shaped?

How is molten glass shaped?
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1 Answer

Answer :

Molten glass is made into desired shapes by either blowing or moulding or pressing

between rollers.
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Related questions

During manufacture of glass, molten glass is cooled slowly to make it

Description : During manufacture of glass, molten glass is cooled slowly to make it

Last Answer : lose brittleness.

Why addition of flint and quartz to molten glass does not shrink or get transformed?

Description : Why addition of flint and quartz to molten glass does not shrink or get transformed?

Last Answer : Flint and quartz are forms of silica, they do not absorb water. As water is not absorbed, they do not get transformed on heating and do not shrink.

Molten phthalic anhydride is stored in a/an __________ vessel. (A) Aluminium (B) Nickel clad steel (C) Lead lined steel (D) Glass lined steel

Description : Molten phthalic anhydride is stored in a/an __________ vessel. (A) Aluminium (B) Nickel clad steel (C) Lead lined steel (D) Glass lined steel

Last Answer : (A) Aluminium

Is the center of the Earth really molten metal?

Description : Is the center of the Earth really molten metal?

Last Answer : answer:For the Skeptic this site is also for you and has some information. Thanks http://www.halfpasthuman.com/alsoaintwhatitusedtobe.html

If the planes that struck the twin towers one hundred floors up are the reason they collapsed, why was there 3000F molten steel in the sub basements four weeks later?

Description : If the planes that struck the twin towers one hundred floors up are the reason they collapsed, why was there 3000F molten steel in the sub basements four weeks later?

Last Answer : I think you answered your own question

Most covalent compounds (a) Behave like electrolytes in the molten state (b) Have high melting and boiling points (c) Are hard substances because of strong covalent bonds (d) Are more soluble in non-polar solvents than in polar solvents

Description : Most covalent compounds (a) Behave like electrolytes in the molten state (b) Have high melting and boiling points (c) Are hard substances because of strong covalent bonds (d) Are more soluble in non-polar solvents than in polar solvents

Last Answer : Ans:(d)

Aluminium is extracted from bauxite (a) By reduction with carbon (b) By reduction with Mg (c) By reduction with CO (d) By electrolysis in molten cryolite

Description : Aluminium is extracted from bauxite (a) By reduction with carbon (b) By reduction with Mg (c) By reduction with CO (d) By electrolysis in molten cryolite

Last Answer : Ans:(d)

The oldest rocks in the earth's crust were once molten; and came from deep in- side the earth. The molten rock; called magma; spewed out in volcanic eruptions during the earth;s early life and solidified into hard rock's called?

Description : The oldest rocks in the earth's crust were once molten; and came from deep in- side the earth. The molten rock; called magma; spewed out in volcanic eruptions during the earth;s early life and solidified into hard rock's called?

Last Answer : igneous rocks

What is the role of molten cryolite in the extraction of aluminium?

Description : What is the role of molten cryolite in the extraction of aluminium?

Last Answer : When pure alumina is mixed with molten cryolite, it forms an electrolyte at 1223K. Molten cryolite also acts as a solvent for alumina.

Why is slag collected above molten iron?

Description : Why is slag collected above molten iron?

Last Answer : Slag is lighter than molten iron and collects above molten iron. Slag prevents oxidations of molten iron back into iron oxide.

Reaction between X and Y forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z? A) Has high melting point B) Has low melting point C) Conducts electricity in molten state D) Occurs as solid

Description : Reaction between X and Y forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z? A) Has high melting point B) Has low melting point C) Conducts electricity in molten state D) Occurs as solid

Last Answer : B) Has low melting point

What do we call molten rock when it is outside the earth?

Description : What do we call molten rock when it is outside the earth?

Last Answer : Lava

When do you use "molten" vs "melted"?

Description : When do you use "molten" vs "melted"?

Last Answer : “molten” historically was simply the past participle of “melt” and thus synonymous with “melted” but now is used as an adjective to refer to things that have been melted by very high heat and are hot in their liquid form like metal or rock or wax. “Melted” would be used otherwise.

Which of the following RP technologies uses molten material as the starting material? a.Three-Dimensional Printing b.Fused-Deposition Modeling c.Stereolithography d.Selective Laser Sintering

Description : Which of the following RP technologies uses molten material as the starting material? a.Three-Dimensional Printing b.Fused-Deposition Modeling c.Stereolithography d.Selective Laser Sintering

Last Answer : c.Stereolithography

(a) State and explain Kohlrausch law. (b) How much electricity in terms of Faradays is required to produce 20 g of calcium from molten CaCl2? -Chemistry

Description : (a) State and explain Kohlrausch law. (b) How much electricity in terms of Faradays is required to produce 20 g of calcium from molten CaCl2? -Chemistry

Last Answer : a) Corrosion is an electrochemical phenomenon. At a particular spot of iron j oxidation it takes place and the spot behaves j as anode and the reaction will be: i At anode : 2Fe(s) → 2Fe2+ + 4e- Electrons ... Ca i.e. 40 g of Ca requires electricity = 2F ∴ 20 g of Ca will require electricity = 1F

(a) Show the formation of Na2O by the transfer of electrons between the combining atoms. (b) Why are ionic compounds usually hard? (c) How is it that ionic compounds in the solid state do not conduct electricity but they do so when in molten state? -Chemistry

Description : (a) Show the formation of Na2O by the transfer of electrons between the combining atoms. (b) Why are ionic compounds usually hard? (c) How is it that ionic compounds in the solid state do not conduct electricity but they do so when in molten state? -Chemistry

Last Answer : (b) It is due to strong force of attraction between oppositely charged ions. (c) In solid state, ions are not free to move whereas in molten state ions are free to move, therefore, they conduct electricity in molten state.

Give reason for the following: (a) Aluminium oxide is considered as an amphoteric oxide. (b) Ionic compounds conduct electricity in molten state. -Chemistry

Description : Give reason for the following: (a) Aluminium oxide is considered as an amphoteric oxide. (b) Ionic compounds conduct electricity in molten state. -Chemistry

Last Answer : a) Aluminium oxide reacts with both acids as well as bases.b) Ionic compounds in molten state conduct electricity. Explanation: a) An amphoteric oxide as one that shows chemical reactivity with ... ions are present in the liquid state. These free ions enable the solution to conduct electricity.

What keeps the continents floating on a sea of molten rock? -Geography

Description : What keeps the continents floating on a sea of molten rock? -Geography

Last Answer : answer:

How many of following are correctly matched for electrolystic reducing in molten state.

Description : How many of following are correctly matched for electrolystic reducing in molten state.

Last Answer : How many of following are correctly matched for electrolystic reducing in molten state.

Number of metals among following which are obatained by electromentallurgy in molten state are Li, Ba, Na,Al, Fe, Cu, Pb, Sn, Ag, Zn, Ca, Mg.

Description : Number of metals among following which are obatained by electromentallurgy in molten state are Li, Ba, Na,Al, Fe, Cu, Pb, Sn, Ag, Zn, Ca, Mg.

Last Answer : Number of metals among following which are obatained by electromentallurgy in molten state are Li, Ba, Na,Al, Fe, Cu, Pb, Sn, Ag, Zn, Ca, Mg.

Electrolytic reduction of `Al_(2)O_(3)`. Electrolyte (`Al_(2)O_(3)+"cryolite")` Anode: Graphite rods. Coke powder is spreadded over the molten electro

Description : Electrolytic reduction of `Al_(2)O_(3)`. Electrolyte (`Al_(2)O_(3)+"cryolite")` Anode: Graphite rods. Coke powder is spreadded over the molten electro

Last Answer : Electrolytic reduction of `Al_(2)O_(3)`. Electrolyte (`Al_(2)O_(3)+"cryolite")` Anode: Graphite rods. ... of molten aluminium by air D. (a) both (b)

A mixture of haematite, coke and limestone on heating in blast furnace gives molten iron metal. This is known as

Description : A mixture of haematite, coke and limestone on heating in blast furnace gives molten iron metal. This is known as

Last Answer : A mixture of haematite, coke and limestone on heating in blast furnace gives molten iron metal. ... Smelting B. Calcination C. Roasting D. Liquition

In extractive metallurgy of lead, the reduction of the roasted ore to the molten metal by heating with coke is called

Description : In extractive metallurgy of lead, the reduction of the roasted ore to the molten metal by heating with coke is called

Last Answer : In extractive metallurgy of lead, the reduction of the roasted ore to the molten metal by heating with ... B. roasting C. calcination D. None of these

When molten sulphur is quenched, the following is formed.

Description : When molten sulphur is quenched, the following is formed.

Last Answer : When molten sulphur is quenched, the following is formed. A. Monoclinic sulphur B. Rhombic sulphur C. Crystex(plastic) D. `gamma`-sulphur

Why does hot water and molten rock tend to rise?

Description : Why does hot water and molten rock tend to rise?

Last Answer : Compared to cold water, hot water has less density; therefore itfloats on the colder water - it tends to rise. I am not surewhether the situation is the same for molten rock; it likely hasless density than non-molten rock, but I am not sure whether that'sthe only reason it rises.

What happens when molten igneous rock reaches the ocean?

Description : What happens when molten igneous rock reaches the ocean?

Last Answer : Feel Free to Answer

Is Steel rod Be heated into a molten metal is example of a phase change?

Description : Is Steel rod Be heated into a molten metal is example of a phase change?

Last Answer : Feel Free to Answer

What is a molten rock beneath the earth's crust?

Description : What is a molten rock beneath the earth's crust?

Last Answer : Feel Free to Answer

Is the name given to molten rock below the Earth's surface.?

Description : Is the name given to molten rock below the Earth's surface.?

Last Answer : Magma. Magma rises towards the surface when it's less dense thanrock around it. Otherwise, it collects in magma chambers and cools,forming igneous rock.

Why can sodium fluoride conduct electricity when it is molten but not solid?

Description : Why can sodium fluoride conduct electricity when it is molten but not solid?

Last Answer : In solution or when is melted sodium fluoride is dissociated in ions.

Is molten material meited rock found on earth surface?

Description : Is molten material meited rock found on earth surface?

Last Answer : Need answer

What happen to the rock that came in contact with the molten materials of the intruded dike?

Description : What happen to the rock that came in contact with the molten materials of the intruded dike?

Last Answer : Don’t know

What do we call molten hot liquid rock while it is still below the Earth's surface?

Description : What do we call molten hot liquid rock while it is still below the Earth's surface?

Last Answer : fb

The rock that results from solidification of molten lava from a volcano is an example of Which of the following? (1) Igneous rocks (2) Granite Rock (3) Basalt Rock (4) Magnetite

Description : The rock that results from solidification of molten lava from a volcano is an example of Which of the following? (1) Igneous rocks (2) Granite Rock (3) Basalt Rock (4) Magnetite

Last Answer : (1) Igneous rocks Explanation: Igneous rocks are formed through the cooling and solidification of magma (or lava).

The rock that results from solidification of molten lava from a volcano is an example of which of the following? (1) Igneous Rock (2) Granite Rock (3) Basalt Rock (4) Magnetite

Description : The rock that results from solidification of molten lava from a volcano is an example of which of the following? (1) Igneous Rock (2) Granite Rock (3) Basalt Rock (4) Magnetite

Last Answer : (1) Igneous Rock Explanation: Igneous rocks are formed through the cooling and solidification of magma (or lava). As hot, molten rock rises to the surface, it undergoes changes in temperature and ... Earth's crust. However, some are also formed on the surface as a result of volcanic activity.

Molten rock below the surface of the earth is called – (1) Basalt (2) Laccolith (3) Lava (4) Magma

Description : Molten rock below the surface of the earth is called – (1) Basalt (2) Laccolith (3) Lava (4) Magma

Last Answer : (4) Magma Explanation: Magma is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth. When magma erupts from a volcano or other vent, the ... . When lava cools on the Earth's surface and forms a solid structure, it is called igneous rock.

Slag is a name given for - (1) molten iron (2) molten sand (3) molten alumina (4) molten calcium silicate

Description : Slag is a name given for - (1) molten iron (2) molten sand (3) molten alumina (4) molten calcium silicate

Last Answer : (3) molten alumina Explanation: Slag is a partially vitreous byproduct of the process of smelting ore, which separates the desired metal fraction from the unwanted fraction. A good example is steelmaking ... separated from the metal, and assist in the removal of sulfur and phosphorus from the steel.

Hydrogen cannot be removed easily from molten steel. What harm hydrogen has on property of steel ?

Description : Hydrogen cannot be removed easily from molten steel. What harm hydrogen has on property of steel ?

Last Answer : Execessive hydrogen results in the formation of small fissures often described as hairline cracks or flakes in the steel. Large forgings in alloy steel are particularly sensitive to this phenom¬enon.

What is the stage of the sand becoming a silicon? a. Liquid b. Gas c. Molten d. Hot

Description : What is the stage of the sand becoming a silicon? a. Liquid b. Gas c. Molten d. Hot

Last Answer : c. Molten

What is the stage of the sand becoming silicon? A. Hot B. Gas C. Liquid D. Molten

Description : What is the stage of the sand becoming silicon? A. Hot B. Gas C. Liquid D. Molten

Last Answer : D. Molten

What is the Molten rock below the surface of the earth?

Description : What is the Molten rock below the surface of the earth?

Last Answer : Magma

Thermocol is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten (A) Saturated polyester (B) Polyurethane (C) Polystyrene (D) Either (B) or (C)

Description : Thermocol is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten (A) Saturated polyester (B) Polyurethane (C) Polystyrene (D) Either (B) or (C)

Last Answer : (D) Either (B) or (C)

Rexine (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten (A) Teflon (B) Bakelite (C) SBR (D) PVC

Description : Rexine (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten (A) Teflon (B) Bakelite (C) SBR (D) PVC

Last Answer : (D) PVC

What is the Molten rock below the surface of the earth?

Description : What is the Molten rock below the surface of the earth?

Last Answer : Magma

Fast breeder reactors do not (A) Use Th-232 as fissile fuel (B) Convert fertile material to fissile material (C) Use fast neutrons for fission (D) Use molten sodium as coolant

Description : Fast breeder reactors do not (A) Use Th-232 as fissile fuel (B) Convert fertile material to fissile material (C) Use fast neutrons for fission (D) Use molten sodium as coolant

Last Answer : (A) Use Th-232 as fissile fuel

Molten sodium (as a coolant in fast breeder reactor) (A) Can’t attain high temperature at normal pressure (B) Is not at all corrosive, even at a higher temperature (C) Is highly radioactive at elevated temperatures and can cause explosion, when it comes in contact with air or water (D) None of these

Description : Molten sodium (as a coolant in fast breeder reactor) (A) Can’t attain high temperature at normal pressure (B) Is not at all corrosive, even at a higher temperature (C) Is highly radioactive at elevated temperatures and can cause explosion, when it comes in contact with air or water (D) None of these

Last Answer : (C) Is highly radioactive at elevated temperatures and can cause explosion, when it comes in contact with air or water

Which is the most commonly used molten metal for cooling of nuclear reactors? (A) Calcium (B) Sodium (C) Mercury (D) Zinc

Description : Which is the most commonly used molten metal for cooling of nuclear reactors? (A) Calcium (B) Sodium (C) Mercury (D) Zinc

Last Answer : (B) Sodium

A fast breeder reactor (A) Utilises fast neutrons for causing fission (B) Converts fertile material (e.g., U-238) into fissile material (Pu-239) (C) Normally employs molten sodium as coolant (D) All (A), (B) and (C)

Description : A fast breeder reactor (A) Utilises fast neutrons for causing fission (B) Converts fertile material (e.g., U-238) into fissile material (Pu-239) (C) Normally employs molten sodium as coolant (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Molten sodium is used as a coolant in a fast breeder reactor, because of its (A) Excellent moderating properties (B) Neutron breeding capability (C) Faster heat removal capability from the core (D) Capability to increase the reaction rate in the core

Description : Molten sodium is used as a coolant in a fast breeder reactor, because of its (A) Excellent moderating properties (B) Neutron breeding capability (C) Faster heat removal capability from the core (D) Capability to increase the reaction rate in the core

Last Answer : (C) Faster heat removal capability from the core

Secondary cooling circuit is a must in molten sodium cooled fast breeder reactor for (A) Achieving high degree of superheat in the steam (B) Faster heat removal rate from the core(C) Lowering the coolant circulation pressure(D) Avoiding the mixing of water with radioactive sodium, as it may causeexplosion

Description : Secondary cooling circuit is a must in molten sodium cooled fast breeder reactor for (A) Achieving high degree of superheat in the steam (B) Faster heat removal rate from the core (C) ... circulation pressure (D) Avoiding the mixing of water with radioactive sodium, as it may cause explosion

Last Answer : (D) Avoiding the mixing of water with radioactive sodium, as it may cause explosion