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Sulfur dioxide can be removed from a gas phase by making use of the reaction

SO2 + CaO = CaSO3.

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What substance is added in the final stages to remove the sulfur from coal?

Limestone is typically added in the final stages to remove sulfur from coal during a process called flue-gas desulfurization. Limestone reacts with sulfur dioxide to form calcium sulfate, which can then be easily removed.


Which chemical could be used to remove the acidic sulphur dioxide from flue gases?

Lime (calcium oxide or calcium hydroxide) is commonly used to remove acidic sulfur dioxide from flue gases. The sulfur dioxide reacts with lime to form calcium sulfite or calcium sulfate, which can then be removed from the gas stream.


Sulfur dioxide gas is passed over solid calcium oxide?

When sulfur dioxide gas is passed over solid calcium oxide, a chemical reaction occurs to produce solid calcium sulfite. The reaction can be represented by the equation: SO2(g) + CaO(s) -> CaSO3(s). This reaction is used in industries to remove sulfur dioxide from gas emissions.


What kind of oxide is sulfur dioxide?

Sulfur dioxide is a toxic gas.


What is the chemical symbol for calcium oxide plus carbon dioxide?

Calcium oxide is CaO, and carbon dioxide is CO2.


What is the word equation for sulfur oxide?

Sulfur oxide can refer to both sulfur dioxide (SO2) and sulfur trioxide (SO3). The word equation for sulfur dioxide is sulfur + oxygen → sulfur dioxide. The word equation for sulfur trioxide is sulfur + oxygen → sulfur trioxide.


Is sulfur dioxide amphoteric?

No, sulfur dioxide is not amphoteric. It is a acidic oxide that reacts with water to form sulfurous acid.


Is Sulphur dioxide and sulfur oxide the same?

Sulfur dioxide (SO2) is a specific compound composed of one sulfur atom and two oxygen atoms. Sulfur oxide is a more general term that can refer to a variety of compounds containing sulfur and oxygen, including sulfur dioxide.


What type of bonding CaO and SO2?

The bonding between calcium oxide (CaO) and sulfur dioxide (SO2) would typically involve ionic bonding. Calcium oxide would donate electrons to sulfur dioxide, creating positively and negatively charged ions that are attracted to each other. This creates a strong electrostatic attraction between the two compounds.


What happens when an oxide reacts with sulphur dioxide?

When an oxide reacts with sulfur dioxide, it can form a sulfate. The sulfur dioxide can oxidize the metal in the oxide, resulting in the formation of a metal sulfate compound. This reaction is often used in industrial processes to remove sulfur dioxide emissions from flue gases.


Is sulfur oxide an element or a compound?

Sulfur (sulphur) dioxide and sulfur trioxide all are compounds, as ANY oxide is.


What is the substance that neutralizes sulfur?

The substance that neutralizes sulfur is called lime or calcium oxide.