Question

What do u observe when a solution of lead nitrata and pottasium iodide in water are mixed?

Answer 1

When you mix aqueous solutions of KI and Pb(NO3)2, you get a yellow suspension (precipitate) of lead iodide. Pb(NO3)2(aq) + 2KI(aq) = PbI2(s) + 2KNO3(aq)
PbI2 is insoluble in water and so it is precipitated as a yellow solid (suspension).

Answer 2

When you mix two substances, sometimes a chemical reaction takes place that results in a change of color, state or temperature. Mixing solid lead nitrate and solid potassium iodide results in a change of state. A cloudy yellow precipitate – an insoluble solid that comes from a liquid solution – forms.

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