Air-activated hand warmers consist of an iron powder contained in a porous pouch. When the pouch is removed from its air-tight packaging, oxygen from the air enters the pouch and reacts with the iron to produce iron(III) oxide. Construct an explanation for why the pouch gets hot based
on changes in total bond energy.

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.

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?