Question

Classify the following reaction *
Pb(NO3)2 (aq) + 2K1 (ag) → Pbl2 (s) + KNO3 (ag)
O single replacement
double replacement
synthesis
decomposition
combustion

Answer 1

Answer:

double replacement

Explanation:

The reaction equation is given as:

       Pb(NO₃)₂  +  2KI   →   PbI₂ +   KNO₃

This reaction is a double displacement reaction.

In this form of reaction, there is an actual exchange of partners to form new compounds.

      AB + CD →  AD + CD

One of the following condition serves as driving force for the reaction:

• formation of an insoluble compound
• formation of water or any other non-ionizing compound
• liberation of a gaseous product.