Chapter 1: Chemical reactions and equations

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Chemical reactions and equations

Question:

Give an example of a double displacement reaction other than the one given in Activity 1.10.

Answer:

Double displacement reaction is defined as the chemical reactions in which two reactants exchange ions to form two new compounds. For example, when lead nitrate solution reacts with potassium iodide, a yellow precipitate of lead iodide is formed along with potassium nitrate. The chemical equation for this reaction is shown below:

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


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