This thermochemical equation describes the reaction of nitrogen monoxide with
oxygen to produce nitrogen dioxide. 2NO(g) + O2(g) –> 2NO2(g) AH = -114 kJ
Which statement best describes the energy change that occurs when 1.0 mol of
NO2(g) is produced by this reaction? *

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~courtney

give me abc and i will get it for u.

answersilicon (si); oxygen (o);

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.