No, it is hardly soluble in sodium hydroxide though it is amphoteric. It's better in (hydrochloric) acid.
no
Iron Sulphate + Sodium Hydroxide -> Sodium Sulphate (Na2SO4) and Iron Hydroxide (Fe(OH)2)
It's a displacement reaction as the sodium displaces the iron
In water, no.
Iron oxide is only soluble when placed in concentrated mineral acids. It is insoluble in organic and water based solvents.
The iron(III) hydroxide is not soluble in water and doesn't react with sodium chloride.
anything important
If the iron oxide is Fe3O4 you can use a magnet.This is possible because magnetite has strong magnetic properties.For the separation from other iron oxides aluminium hydroxide can be dissolved in alkalis; iron oxides are not soluble in alkalis.
iron chloride + sodium hydroxide = sodium chloride +iron hydroxide
It is Iron III hydroxide (thats the brick red precipitate). It forms as well sodium chloride which is soluble in the water of the reaction and therefore you do not see.
Iron oxide is with oxygen poopys
no
Iron Sulphate + Sodium Hydroxide -> Sodium Sulphate (Na2SO4) and Iron Hydroxide (Fe(OH)2)
= iron hydroxide plus sodium chloride
Yes, it tarnishes after coming in contact with the air because it gradually reacts with oxygen in the air to produce sodium peroxide and sodium oxide. When exposed to water, it produces sodium hydroxide (lye) and flammable hydrogen gas.
It's a displacement reaction as the sodium displaces the iron
FeCI3 +3NaOH ->Fe(OH)3 +3NaCIIron (III) chloride + Sodium Hydroxide ---> iron (III) hydroxide + sodium chloride