Magnesium carbonate is soluble in water (100 mg / L) whereas strontium carbonate is only slightly soluble in water (11 mg / L). Would you expect barium carbonate to be more or less soluble than calcium carbonate? Why? Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is yellow, and C is red. In the reactions in which they participate, they are reduced to A−, B−, and C−ions, all of which are colorless. When a solution of C is mixed with one containing B− ions, the color changes from red to yellow.  Which species is oxidized? Which species is reduced? When a solution of C is mixed with one containing A− ions, the color remains red. Is C a better oxidizing agent than A? Or it is a better oxidizing agent than B? Arrange A, B, and C in order of increasing strength as an oxidizing agent.

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Magnesium carbonate is soluble in water (100 mg / L) whereas strontium carbonate is only slightly soluble in water (11 mg / L). Would you expect barium carbonate to be more or less soluble than calcium carbonate? Why?

Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is yellow, and C is red. In the reactions in which they participate, they are reduced to A−, B−, and C−ions, all of which are colorless. When a solution of C is mixed with one containing B− ions, the color changes from red to yellow. 

  1. Which species is oxidized? Which species is reduced?
  2. When a solution of C is mixed with one containing A− ions, the color remains red. Is C a better oxidizing agent than A? Or it is a better oxidizing agent than B?
  3. Arrange A, B, and C in order of increasing strength as an oxidizing agent. 

 

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