Two pairs of dancers encounter each other on the dance floor. The couples switch partners with each woman now dancing with the other man. This situation is analogous to which kind of reaction?

Explanation:

This situation is analogous to a double replacement reaction. A double-replacement reaction occurs when parts of two ionic composites are exchanged, making two new composites. One characteristic of this kind of reaction is that there are two compounds as reactants and two different compounds as products. So, in this case we can relate with it because there are two new couples with the same members that formed the previous couples.