Question

HNO3 + Fe → Fe (NO)3 + ↑ + H2

Answer 1

$<var>\\Fe+HNO_3-->Fe(NO_3)_2+H_2\uparrow\\ \\ Fe^0 - 3e -->Fe^I^I^I\ \ \ \ \ \ \/\cdot 2\\ 2H^I + 2e -->H_2^0\ \ \ \ \ \ \ /\cdot 3\\ \\ 2Fe+6HNO_3-->2Fe(NO_3)_2+3H_2\uparrow</var>$