A cup of water contains 13.9 moles of water. How many molecules of water are in the cup.

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?

How does the viscosity of magma change as magma cools?

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?