If 3.2 moles of sodium sulfate is used in the reaction, how many formula units of phosphoric acid is needed to completely react? that's the answer but I don't know how to get to the answer(1.28427×10^24)

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Based on the equation and the information in the table, what is the enthalpy of the reaction?

24 points and brainliest to anyone who can answer under 10 minutes with best ! the table below shows the role of different substances during photosynthesis. substance role during photosynthesis glucose stores chemical energy water combines with glucose to form carbon dioxide chlorophyll traps sunlight which of the following statements would correct one of the roles listed in the table? glucose combines with carbon to form water. chlorophyll reacts with light to produce carbon dioxide. water combines with carbon dioxide during photosynthesis. chlorophyll stores chemical energy needed for photosynthesis.