Question

Что является электролитом: 1) Cu(No3)2 2) BaSo4 3) Fe(OH)3 4) CaCO3 объяснить почему.

Answer 1

Электролитом является растворимая соль Cu(NO3)2.
Уравнение диссоциации:
Cu(NO3)2 = Cu(2+) + 2NO3(-)

BaSO4, Fe(OH)3, CaCO3 нерастворимые соединения.

Answer 2

What is an Electrolyte?

An electrolyte is a substance that conducts electricity when dissolved in water or melted. It is capable of dissociating into ions and can carry an electric current. Let's analyze the given compounds to determine which one is an electrolyte.

Analysis of Compounds

1) Cu(NO3)2: - Copper(II) nitrate, Cu(NO3)2, is a strong electrolyte. When dissolved in water, it dissociates into copper ions (Cu^2+) and nitrate ions (NO3^-), allowing it to conduct electricity. 2) BaSO4: - Barium sulfate, BaSO4, is not an electrolyte. It is an insoluble compound and does not dissociate into ions when dissolved in water, therefore it does not conduct electricity. 3) Fe(OH)3: - Iron(III) hydroxide, Fe(OH)3, is not an electrolyte. It is a sparingly soluble compound and does not dissociate significantly into ions in water, thus it does not conduct electricity effectively. 4) CaCO3: - Calcium carbonate, CaCO3, is not an electrolyte. It is insoluble in water and does not dissociate into ions, therefore it does not conduct electricity.

Conclusion

Based on the analysis, the compound that is an electrolyte is Cu(NO3)2. It dissociates into ions when dissolved in water, allowing it to conduct electricity.

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