Which two plant cell structures are responsible for storing energy from sunlight and later releasing it for cells to use

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?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure