So potassium<span> is </span>more<span> reactive </span>than<span> lithium because the outer electron of a </span>potassium<span> atom is </span>further<span> from its nucleus </span>than<span> the outer electron of a lithium atom.</span>
I believe the answer is C: "<span>It occurs when a hydrogen atom bonds with electropositive atoms."</span>
Yes it is C and B because I did this before.
Two things that store chemical energy are coal, and wood cause when you have a fire you have to get the chemicals from somewhere to keep your fire live.