Answer:
iron (III) oxide is a gas
An not sure,, but maybe 24. don't take my word for it
1.66 is the answer because it’s is
It's a chemical change because a new compound is formed
Answer is: A) Sr (strontium).
The reactivity series<span> is a series of metals from highest to lowest reactivity.</span><span> Metal higher in the reactivity series will displace another.
</span>Strontium is only higher in this group from magnesium. Strontium is stronger reducing agent than magnesium, gives electrons easier.
