0.25 grams of magnesium chloride are dissolved to make 50 milliliters of solution. what is the molarity of the solution?

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.