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iLab 2 of 7: Cations and Anions
For this week’s lab, you will conduct the following Model ChemLab experiment: Cations and Anion Reaction. This experiment will demonstrate a double-replacement reaction of ionic compounds. In this experiment, you will mix two ionic compounds. Both compounds are soluble in water. If a reaction occurs between these two compounds, then a precipitate will form because one of the two resultant compounds is not soluble in water. This is evidence that a reaction occurred. The following reaction will occur: lead nitrate potassium chromate à potassium nitrate lead chromate The following is the balanced chemical reaction: Pb(NO3)2 K2CrO4 –> 2 KNO3 PbCrO4
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