The answer to this question would be: <span>its concentration is half that of the cl− ion.
When CaCl2 molecule dissolved, it will split into one Ca2+ ion and two Cl- ion. That means for every 1 CaCl2 there will be 3 ions formed. In this case, the amount of Ca2+ should be half of Cl- ion. An element with higher valence tends to have less atom in a molecule than an element with lesser valence </span>electron.
Answer:
The same element that contain equal number if protons but different number of neurons in their nuclei and hence differ in relative atomic mass
A dissolved mixture when it mixed together hope this helps