A solution containing cacl2 is mixed with a solution of li2c2o4 to form a solution that is 2.1 × 10-5 m in calcium ion and 4.75 × 10-5 m in oxalate ion. What will happen once these solutions are mixed?

The question is incomplete, complete question is:

A solution containing CaCl2 is mixed with a solution of Li2C2O4 to form a solution that is in calcium ion and in oxalate ion. What will happen once these solutions are mixed?

On mixing of both the solutions no precipitation will occur due to lower value of an ionic product of calcium oxalate from its solubility product.

Explanation:

Molar concentration of calcium ions =

Molar concentration of oxalate ions =

ionic product of calcium oxalate in solution :

Solubility product of calcium oxalate =

Generally precipitation occurs when ionic product of substance in solution exceeds its solubility product.

(precipitation occurs)

(non precipitation occurs)

On mixing of both the solutions no precipitation will occur due to lower value of an ionic product of calcium oxalate from its solubility product.

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

the answer is c i believe