Pls help me it detects if it’s right or wrong

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

Modern weaponry has increased the number of deaths in wars and violent conflicts.

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.