Yeas, the reaction is balanced
610.864 Energy result in kilojoules:
I really don’t know. Sorry
Answer:
2.18 mol Ar.
Explanation:
Hello there!
In this case, according to the definition of mole as the amount of particles of a given substance, it is possible to introduce the Avogadro's number to assert that 1 mole of any element contains 6.022x10²³ atoms; thus, the moles of Ar in the given amount of atoms turns out to be:

Best regards!
Well one characteristic gases and the state of matter(one of the distinct form i which matter exist)