Chemistry, 05.01.2021 06:00 averagegirl27

Is reacting sodium metal with water a physical or chemical change

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Answer from: ambernolinan

$\boxed{\boxed{\pink{\bf \leadsto This \ is \ an \ example \ of \ Chemical \ change .}}}$

Explanation:

Reaction of sodium metal with water is a chemical change . Sodium reacts with water to form sodium hydroxide. This is also an example of exothermic reaction as heat is released in this process. Sodium reacts vigoursly with water , it even reacts with the moisture present in the air . So it is stored in kerosene oil .

The reaction of sodium with water is :-

$\boxed{\red{ \bf \underset{\blue{Sodium}}{2Na} + \underset{\blue{Water}}{2H_2O} \longrightarrow \underset{\blue{Sodium\: Hydroxide}}{2Na(OH)}+ \underset{\blue{Hydrogen}}{H_2}}}$ .

Answer from: moonk7733

The reaction of sodium metal with water is a chemical change, as a result formation of sodium hydroxide occurs.

A Chemical change is any change that occurs to substances which when combine to form a new substance or decompose to form new substances. Here there occurs an internal consistency of the matter involved in that particular change.A physical change is a change with involves the changes in the size, shape, texture, etc. of any substance.

The following points to be noted for the reaction of sodium with water:

The sodium reacts with water to give sodium hydroxide.The presence of the single outermost electron (3s1) in sodium makes the metal highly reactive.This is a chemical change which is an exothermic reaction, which means the reaction results in the liberation of heat during the process.Sodium is a very highly reactive metal, which can even react with moisture present in the air.To avoid any unnecessary reactions, sodium is stored in kerosene, where it seems to be inert.

Therefore, the reaction of sodium with water is a chemical change.

Learn more about sodium:

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Answer from: Quest

the answer is: they rebelled against saddam hussein’s rule.

kurds opposed saddam rule and wanted independence. kurds in the north and shiites in the south revolt against hussein.

for example, the halabja attack in 1988 conducted against the kurdish people by the iraqi regime under saddam hussein, where between 4000 people are killed and around 9000 are injured.

Answer from: Quest

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and conduct electricity easily while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

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Is reacting sodium metal with water a physical or chemical change...

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