Omphulusa prepared nitrogen gas by heating ammonium nitrate NH4NO2(s)=N2(g) +2H2O(l)

if she collected the nitrogen over water at 23 degrees Celcius and 727mmHg ,how many liters of Gas would she obtain from 5.68g NH4NO2
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the answer is b & c i believe : )

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.

im doing test rn im going with 2 but ill give answer if itss wrong,   : )