Answer:When a substance undergoes a chemical change some of the chemical changes can be reversed with a chemical change.
Explanation:
A chemical change changes all of the element but some chemical changes but very few can be changed back to its original substance only with a chemical change.
Antimony has two naturally occurring isotopes. Their abundance is given in the pic attached below
Answer:
A:There must be diversity in the population.
Explanation:
Hopefully this helps!
It would be an physical change ; if you melt butter the butter goes from a solid to a liquid so therefore the physical state is changed.
