The molar mass of gallium (Ga) is 69.72 g/mol. Calculate the number of atoms in a 27.2 mg sample of Ga.
Write your answer in scientific notation using three significant figures.
atoms Ga

What is the molality of a solution that has 4 mol of kci in 0.800 kg of water

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

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?