In your double replacement reaction, the more reactive metal "pushed" the other one out of its place. without using the internet, where could you look to determine which metal was more reactive?

an alkaline

Explanation:

when valence electrons are farther from the nucleus, they are attracted less strongly by the nucleus an more easily remove from the atom .this makes the atom more reactive .this make alkaline metal with their two valence electron less reactive than alkali metal with their one valence electron