Read More
Date: 10-8-2020
1293
Date: 29-7-2020
881
Date: 26-5-2019
977
|
A precipitate forms in a double-replacement reaction when the cations from one of the reactants combine with the anions from the other reactant to form an insoluble ionic compound. When aqueous solutions of potassium iodide and lead (II) nitrate are mixed, the following reaction occurs.
There are very strong attractive forces that occur between Pb2+ and I− ions and the result is a brilliant yellow precipitate (Figure 1 ). The other product of the reaction, potassium nitrate, remains soluble.
Figure 1 : Lead (II) iodide precipitates when potassium iodide is mixed with lead (II) nitrate.
|
|
"عادة ليلية" قد تكون المفتاح للوقاية من الخرف
|
|
|
|
|
ممتص الصدمات: طريقة عمله وأهميته وأبرز علامات تلفه
|
|
|
|
|
المجمع العلمي للقرآن الكريم يقيم جلسة حوارية لطلبة جامعة الكوفة
|
|
|