Calculate the change in energy when 75.0 grams of water drops from 31.0C to 21.6C.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

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.

Joan writes four numbers on the board in standard form, and then she writes their scientific notation