Element C will have 5 protons
<span>2CO(g) + O2(g) → 2CO2(g)
from the reaction 2 mol 2 mol
from the problem 4.07 mol 4.07 mol
So 4.07 mol CO2 can be produced.
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Water is a compound. A compound is made up of two or more elements. In the case of water, or H2O, there are 2 hydrogen atoms present and 1 oxygen atom. I hope this helps you on your assignment. Good luck!