there are 2 copper atoms on the left side of the arrow, but none on the other side. there are also 7 oxygen atoms on the left hand side, but only 5 on the right hand side of the arrow.
Great Question!
The Answer Would Be "B" The "RESPONDING" Variable
The odysseyware answer is the same as his wood manure and food crops
<span>he introduced his law of triads. each triad was a group of three elements</span>