Question

2 miles of NO will react with _____ mole(s) of O2 to produce _____ mole(s) of NO2

Answer 1

2 miles of NO u wot m8? knowing you mean moles you start this question by writing an equation out like this 2NO + _O2 ---> _NO2

Now you must balance this equation to have equal nitrogen and oxygen atoms on each side like this 2NO + O2 ---> 2NO2