Calculate the mole fraction of solute in a 1.0 m solution in which toluene (C7H8) is the solvent.

This large tectonic plate is bounded on three sides by whats know as the ring of fire. what is the name of this tectonic plate? a) pacific plate b) eurasian plate c) north american plate d) indo- australian plate plz it's science but there's no option for science so i picked chemistry

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

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