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chemical reaction where two compounds react, and the positive ions and the negative ions of the two reactants switch places, forming two new compounds or products.
3.
chemical reaction in which a more reactive element displaces a less reactive element from its compound
4.
Reactions in which energy is absorbed
5.
an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products