Adouble replacement reaction can be best described as a reaction in which a)a substitution takes place. b)two atoms of a compound are lost. c)ions are exchanged between two compounds. d)electrons are exchanged between two atoms.

Option C= ions are exchanged between two compounds.

A double displacement reaction, also known as a double replacement reaction or metathesis, is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products. For example,

                                    Na2S + 2HCl → H2S + 2NaCl

Option D is incorrect because electrons are exchanged between the atoms in oxidation –reduction reactions.

C.) ions are exchanged between two compounds. Edge 2020.

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that tool would be a compass