Write the complete balanced equation for the reaction that occurs when calcium carbonate (CaCO3) reacts with lithium nitride (Li3N) in an aqueous solution

Question

unbelievabledreams · Answer

@LanguageEnthusiast This one is confusing. :/

parthkohli · Answer

Since we're looking at ionic bonds, here are the the individual ions:$$\rm Ca^{2+}$$$$\rm CO_3^{2-}$$$$\rm Li^{+}$$$$\rm N^{3-}$$

parthkohli · Answer

I'm not an expert in chemistry, but it seems that the ions will displace each other.

unbelievabledreams · Answer

I can see that, but how to create a balanced equation? o-o

parthkohli · Answer

First, can you find the chemical formulas of the two compounds formed?

They should be calcium nitride and lithium carbonate. 

We'll look at balancing later.

unbelievabledreams · Answer

CaCO3 + Li3N --> ?

parthkohli · Answer

Calcium carbonate + lithium nitride ----> Lithium carbonate + calcium nitride

unbelievabledreams · Answer

I see. CaCO3 + Li3N -> Li2CO3 + Ca3N2

parthkohli · Answer

Right.  Now, balance it.

unbelievabledreams · Answer

3CaCO3 + 2Li3N -> 3Li2CO3 + Ca3N2, right?

parthkohli · Answer

Nice.

unbelievabledreams · Answer

Yay. But what is an aqueous solution?

parthkohli · Answer

That's not too relevant.  It just tells you that the reaction takes place in water.

unbelievabledreams · Answer

Oh, I see. I have one more question.

parthkohli · Answer

Shoot!

unbelievabledreams · Answer

Which of the following is not a correct chemical equation for a double displacement reaction? 

 2 RbNO3 + BeF2 -> Be(NO3)2 + 2 RbF 

 CaCl + LiCO3 -> CaCO3 + LiCl 

 Na3PO4 + 3 KOH -> 3 NaOH + K3PO4 

 2 MgI2 + Mn(SO3)2 -> 2 MgSO3 + MnI4

unbelievabledreams · Answer

I think it is between B or C

parthkohli · Answer

CaCl isn't a real thing, so yes, it should be B.

unbelievabledreams · Answer

Okay, Thank you. :D

parthkohli · Answer

No problem. :)