A displacement reaction happens when a more reactive metal (one that forms positive more easily) removes a reactive metal from a compound.

ions, less

Explanation:

A displacement reaction happens when a more reactive metal (one that forms positive ions more easily) removes a less reactive metal from a compound.

a. they are both space stations

happy to

pls mark as brainliest.

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.