Decomposition of KClO3 question?

Here's my balanced equation:
2KClO3--->3O2 + 2KCl
1. What chemical can be used to detect the salt which remains from the decomposition?
2. Write a complete balanced equation for the reaction of the chemical with the salt?

Thanks!

Answer:
One possibility is to add a sustance that will react with KCl to form a precipitate.

You could dissolve the KCl in water: KCl(aq).

Then add silver nitrate: AgNO3(aq)
A double replacement rxn occurs:
KCl(aq) + AgNO3(aq) --> KNO3(aq) + AgCl(s)

Two products form in this reaction: KNO3 is soluble, so you won't see it. But, AgCl is insoluble (a white precipitate), so its appearence indicates at least the presence of the Cl ion.

I'm sure there is a qualitative test for the potassium ion.

Hi there...
I have an idea from the quantitative analysis i did in school!

You can use silver nitrate(AgNo3)
On adding it to the aqueous solution of KCl, the reaction will produce a white cloudy precipitate of AgCl which indicates, your original salt was a chloride!

KCl + AgNo3 ---> AgCl + KNO3

After that you have to continue to use standard quantitative chemical procedures to figure out which metal the salt contains.

I dont know the procedure for potassium, but i think it must be available on wikipedia.i'm gonna be on a flight in two hours!
So i g2g
All the Best

PS: theres no single chemical that will tell you what salt is which...u need to figure out with a number of reactions

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Decomposition of KClO3 question?

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