Question

одновременно не может находиться в растворе следующая пара ионов:а)SO4 и Baб)Сl и Hв)Na и SO4г)Mq и Br

Answer 1

правильный ответ а)SO4 и Ba

Answer 2

ответ а)  так как образуется осадок сульфат бария

Answer 3

Incompatibility of Ion Pairs in Solution

In a solution, certain ion pairs cannot coexist simultaneously due to their chemical properties. Let's examine the given ion pairs to determine which pair cannot coexist in a solution.

a) SO4 and Ba The sulfate ion (SO4) and the barium ion (Ba) form an insoluble compound, barium sulfate (BaSO4), which precipitates out of solution. Therefore, the pair SO4 and Ba cannot coexist in a solution [[1]].

b) Cl and H Chloride ion (Cl) and hydrogen ion (H) can coexist in a solution. Hydrochloric acid (HCl) is a common example of a solution containing both chloride ions and hydrogen ions.

c) Na and SO4 Sodium ion (Na) and sulfate ion (SO4) can coexist in a solution. For example, sodium sulfate (Na2SO4) is a soluble salt that can exist in solution.

d) Mg and Br The given ion pair "Mq" is not a recognized ion. However, magnesium ion (Mg) and bromide ion (Br) can coexist in a solution. Magnesium bromide (MgBr2) is a soluble salt that can exist in solution.

Based on the chemical properties of the ions, the pair that cannot coexist in a solution is a) SO4 and Ba.