It is important because they need money and food and water because they don't have that much.
Answer and Explanation:
a. 4. Common ion effect, this is due to reduction in common ion effect
b. 1. SOlubility as the salt would be dissolved in 100 ml of water
c. 5. Saturated solution as the solution would be dissolved completely
if any extra addition to be made than it would not dissolved
d. 3. Solubility product constant as it used the equation
e. 2- Molar Solubility as the maximum moles would dissolve in 1 liter of solution
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