Which of the following is true about an atom of iron and an atom of copper? (1 point) They have different masses.
Both have the same properties.
They have an equal number of protons.
Both have different types of sub-atomic particles.

a galvanic cell( aka voltaic cell) and electrolytic cell

explanation:

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a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.