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This is because carbon is less reactive than aluminium.
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Why is electrolysis needed to extract aluminum from its oxide?
The bond between the aluminum and its oxide is very strong. Aluminium is also high up in the reactivity series; using the displacement method requires highly reactive elements at high temperatures to extract the aluminum (not practical). You have to use electrolysis to extract aluminum because... Aluminium is higher than carbon in the reatvity series where carbon reduces the oxide from zinc iron tin etc.... so you need to use electrolysis to remove the oxygen from the aluminum ore. Hoped this help :)
What is the net ionic equation for carbon dioxide gas when it is passed over hot solid sodium oxide?
NaO + CO2-> NaCO3
How is iron made from iron oxide?
Iron oxide is mixed with coke(Carbon) and Limestone(Calcium Carbonate). This mixture is named 'sinter'. It is loaded into the top of the blast furnace. Whereupon a BLAST of hot air is blown in at the bottom through 'tuyeres'. The temperature is about 1100 oC . This is a 24 hour , 7 days a week process. It does not stop unless the furnace is to be closed down for maintainance, e.g. checking the silicon brick lining, and checking the cooling water jacket is water-tight etc., This hot air does two things;- #1 it combines with the coke to form carbon monoxide (CO) #2 it thermally decomposes the limestone to calcium oxide and carbon dioxide. Because of the 'shortage' of oxygen in the furnace and an excess of coke , the carbon dioxide also decomposes to form carbon monoxide. The carbon monoxide is a very good reducing agent and reduces the iron ore to form iron. Fe2O3 + 3CO = 2Fe + 3CO2 The CO2 can then re-circulate to form more CO. The calcium oxide formed from the decomposition of limestone reacts with the impurities , mainly sand (silicon dioxide) to form 'slag' (Calcium silicate ' CaSiO3). So you have two products viz. 'pig' iron and 'slag'. The 'pig' iron has the carbon levels adjusted in a BOS plant to make steels. and the 'slag' is used to make 'breeze' blocks for building and for road surfaces. NB THe coke(carbon) is obtained from coal. Coal is baked in coke ovens to release the unwanted gases e.g. sulphur dioxide, ammonia, hydrogen sulphide , methane etc., to form coke. These released gases are 'captured' and sold to make other chemicals. e.g. paints, fertilizers. etc., Hope that helps!!!!
What are the features of laterite soil?
Laterite soil is rich in iron oxide and aluminum and is derived from a wide variety of rocks through leaching. It is formed in hot and wet tropical areas and is blackish brown to reddish in color.
How does carbon affect the geosphere?
it makes it hot
Why aluminum does not react with cold water?
it goes slightly alkaline, and Produces Aluminium Hydroxide
Why is electrolysis needed to extract aluminum from its oxide?
The bond between the aluminum and its oxide is very strong. Aluminium is also high up in the reactivity series; using the displacement method requires highly reactive elements at high temperatures to extract the aluminum (not practical). You have to use electrolysis to extract aluminum because... Aluminium is higher than carbon in the reatvity series where carbon reduces the oxide from zinc iron tin etc.... so you need to use electrolysis to remove the oxygen from the aluminum ore. Hoped this help :)
How can the carbon dioxide produced when these fuels are burned influence climate?
put ur penis on hot burner then it will produce carbon di oxide
Does oxygen react with hot copper?
Yes, it rapidly forms a layer of blue green copper oxide on the copper surface.
Does calcuim oxide react with cold water?
Yes it does react. It forms Calcium hydroxide and makes the water hot. It is because the reaction between CaO and water is an exothermic reaction
What conditions favor rust?
amazingy the answer is hot humid cimates where the oxide can react with the outside pluatrian of the metal which will start the rust to form.
What is the net ionic equation for carbon dioxide gas when it is passed over hot solid sodium oxide?
NaO + CO2-> NaCO3
What happens when a red hot charcoal in kept in a gas jar covering it with glass lid?
when red hot charcoal is kept in glass jar then carbon reacts with oxygen present in that glass jar and forms carbon-di-oxide as major product , but a little amount of carbon monoxide is also formed .
What is the word equation for the production of tin by smelting tin oxide with hot carbon?
google it mc 4=asfsd + go on google and type it in mcsquared
Why can iron be extracted by heating with carbon?
I dont f*****g know you @$$ c**t $!ut ure mom used to be a saint til she took a 8==d to the mouth
What is the formula for dry ice?
The dry ice is the solid form of the Carbon Dioxide (CO2) so you can name it: Carbonic anhydride, Carbonic acid gas, Carbon oxide, Carbonic oxide, Carbon(IV) oxide, and also as you called it, Dry ice (solid phase).
Why is it when a piece of copper is folded squashed and heated in air only the outside of the copper is black?
The black coating you see is a coating of copper oxide, which forms when the hot metal reacts with air. no air can reach the inside, so it does not react to form black copper oxide.
