For Iron:

For Oxygen:

These are the two chemical symbols for the two elements found in Iron Oxide.
Answer:
Q = 143,921 J = 143.9 kJ.
Explanation:
Hello there!
In this case, according to the given information, it turns out possible for us to calculate the absorbed heat by considering this is a process involving sensible heat associated to the vaporization of water, which is isothermic and isobaric; and thus, the heat of vaporization of water, with a value of about 2259.36 J/g, is used as shown below:

Thus, we plug in the mass and the aforementioned heat of vaporization of water to obtain the following:

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Uh i did this because it made me curious... i may have done it wrong nothing happened
C and A because the product of a matter will always be the same and just google A.