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Pure sodium is highly reactive with air and moisture, causing it to oxidize and form a layer of sodium oxide or hydroxide. This reaction can be exothermic and can lead to a fire or explosion in the presence of air. Storing pure sodium in oil creates a barrier between the sodium and air, preventing this dangerous reaction from occurring.

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1y ago

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Why cant carbon be used to extract sodium from its ore?

Carbon cannot be used to extract sodium from its ore because sodium is more reactive than carbon. When carbon reacts with sodium ore, carbon will preferentially react with oxygen in the ore to form carbon dioxide rather than extracting sodium from the ore. Therefore, other methods such as electrolysis are used to extract sodium from its ore.


What is the equation for the decomposition of sodium hydroxide?

The dissociation reaction for sodium hydroxide in water is as follows: NaOH(s) ---> Na+(aq) + OH-(aq)


What is a shiny black solid or in purple gas and its found in table salt?

table salt is NaCl (sodium chloride) so its either sodium or chlorine chlorine is a green gas so it cant be that sodium is a light silvery solid so it cant be that the question doesn't seem to make much sense


Can sodium and potassium combine to form a covalent bond?

Sodium and potassium are both metals that typically form ionic bonds with nonmetals. Due to their low electronegativity, they are unlikely to form a covalent bond with each other as it would require sharing of electrons, which is not favorable for metals.


What is the role of heat treatment in folin-Wu method?

in folin wu's method,in second step,we add molybic acid and sodium tungstate with sodium hydroxide and water in order to form phosphomolybdic acid.we heat the whole mixture so formed vigorously to remove ammonia present in the molybic acid.if it is not removed then it can form its complex with copper sulphate (alkaline) .due to this it will become unavailable to react with the given sample of deprotinised blood.and we cant proceed the glucose estimation further.