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Double Replacement Reactions

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Uploaded by on May 16, 2008

Double replacement reactions:
K2CrO4 + 2AgNO3 = Ag2CrO4 + 2KNO3 and
2KI + Pb(NO3)2 = PbI2 + 2KNO3
dupuis.shawbiz.ca

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Uploader Comments (msnye)

  • how did we get silver chromate???? in the first experiment???? pls. explain........tnx

  • pause the video at 24 seconds into the video and look carefully at the chemical reaction. These 2 couples in the reactant side (left side of the equal sign) are going to trade partners and become the 2 couples (compounds) on the product side (right side)! K (metal) grabs hold of NO3 (non metal polyatomic ion) and Silver-Ag grabs hold of CrO4 the non metal polyatomic ion. Thus, a chemical reaction has occurred - two new compounds are formed. hope that helps.

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All Comments (9)

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  • how do you get the potassium iodide in the test tube, do you just pour it or use a dropper?

  • double DISplacement

  • hello omnibus guys!

  • Lead(II)iodide dissolves in water upon heating in water bath. When left to cool the lead(II)iodide will crystalize to form small planar crystals. Swirling the cooled solution looks like a sheet of leaf cold shreaded into water!

  • she is making meth! :o

  • tnx:) it did help. Happy 2009!

  • awesome =)

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