What occurs during a double replacement reaction

A double replacement reaction is a type of chemical reaction that occurs when two reactants exchange cations or anions to yield two new products. Double replacement reactions are also called double replacement reactions, double displacement reactions, or metathesis reactions.

Explanation:

hope this helps mark me brainliest thank you <3

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

bcde is the incorrect answer it is a