Question

in joining two molecules by dehydration synthesis, a(n) ____ group is removed from one molecule and a(n) ____ from the other; a new chemical bond then forms between the molecules. hydrogen (-h) water (h₂o) oxygen (o₂) hydroxyl (-oh) need help? review these concept resources. rate your confidence to submit your answer. high medium low reading © 2025 mcgraw hill. all rights reserved. privacy center terms of use

Explanation:

In dehydration synthesis, a hydroxyl (-OH) group is removed from one molecule and a hydrogen (-H) from the other to form a water molecule ($H_2O$) as a by - product and a new chemical bond between the molecules.

Answer:

A. hydrogen (-H)
D. hydroxyl (-OH)