PLEASE HELP! THIS IS DUE VERY SOON! Whats a few examples of comparing and contrasting solutions with different concentrations of a solute? It's for my science class. I really need help.

What diagram shows the ionic compound of magnesium oxide

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

Which metal exist in liquid state and can be cut with knife ?