When two aqueous solutions of soluble ionic compounds are mixed, the production of a precipitate is possible if one of the double replacement reaction products is insoluble in water.
FeCl3(aq) + 3NaOH(aq) --> 3NaCl(aq) + Fe(OH)3(s)
The Fe(OH)3 produced in the double replacement is insoluble in water and will therefore form a solid precipitate upon mixing. The formation of the precipitate indicates a chemical reaction has occurred.
The reaction is:
2NaOH + FeCl2 = 2NaCl + Fe(OH)2
Iron hydroxide is a precipitate.
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Macaroni
MgCl2 + Na2CO3 = 2NaCl + MgCO3
Copper chloride + Sodium hydroxide --> Copper hydroxide + sodium chloride
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the solid sodium chloride will dissolve in water.
soap+glycerine
Nothing
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It will form salt sodium chloride and water (Nacl + H20)
You get a mixture of sodium chloride and gold. There will be no chemical reaction. Gold is very unreactive.
Any reaction occur.
Sodium chloride. Here is the reaction equation NaOH(aq) + HCl(aq) = H2O(l) + NaCl(aq)[sodium chloride]. NB Sodium chloride is common table salt that you put on food.
Table salt is created when they mix
Jesus is re-incarnated.