Hi sorry i dont know this i know alot about science but i dont know this
I believe it is mono-lateral because most animals are divided in half at the spine.
It has to be noted that sodium is an element which belongs in the first column of the periodic table. This means that it has a valence electron of 1 which further means that it is capable of donating one of its electron to another element during reaction. This is exactly the explanation as to why it becomes charged +1 after the reaction.
Answer:
A
Explanation:
because you can turn the melted iron back to the solid it was before
