Complex sentence: This reaction was an important part of the industrial revolution in chemistry, and was made possible in the USA as a product of massive amounts of cheap hydro-electric power liberated from Niagara Falls before the turn of the 20th century.
Split into simpler sentences: This reaction was an important part of the industrial revolution in chemistry. In the USA this occurred as a product of massive amounts of cheap hydro-electric power liberated from Niagara Falls before the turn of the 20th century.