How do potential energy diagrams represent energy transfer in
chemical reactions?

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Explanation:

Potential energy diagrams represent the energy transfer in chemical reactions  in a diagram called a potential energy graph and/or a reaction progress curve. A potential energy diagram shows the adjustment in potential energy of a system as reactants are changed.

answer; /// the amount of material dissolved in a measure of liquid(concentration) the above statement is (true); /// good luck

the answer for sodium is 0.186

the answer for rubidium is 0.251