What happened to the concentration of the product of h2o when the reaction shifts to the left

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

What is a metal replacement reaction