Answer:
A...................................
Word equation - calcium + oxygen -> calcium oxide
Chemical equation - Ca + O2 -> CaO2
Hope this helps!
I believe it's a pure element
He limiting reagent<span> (or </span>limiting reactant<span>) in a chemical reaction is the substance that is totally consumed when the chemical reaction is complete. We determine by doing as follows:
11 L Cs2 ( 1 mol / 22.4 L ) = 0.49 mol Cs2
18 L O2 ( 1 mol / 22.4 L ) = 0.80 mol O2
Therefore, the limiting reactant would be oxygen since it only needs about 0.27 mol of Cs2 to be consumed completely.
</span>
