This is my guess:

Mn + H⁺  + NO₃^- -----> Mn²⁺ + NO + H₂O

 

Yeah, I'm sure there's something wrong with it. I just started RedOx today.

While I'm unsure about the nature of the redox reaction, the balanced stoichiometric equation between Mn and HNO₃ should be something like this: 

3Mn + 8HNO₃ → 3Mn(NO₃)₂ + 2NO + 4H₂O

Hopefully that helps.

Firechicken18--- don't forget to count atoms and charge.  The number of atoms of each element have to be the same on both sides of the equation (unless, of course, you are converting matter to energy or vice versa  which we don;t much do in chemical reactions).  Notice how Amphibole has made sure the number of atoms on each side of each element are the same.

On 03/02/2018 at 2:44 PM, OldChemE said:

Firechicken18--- don't forget to count atoms and charge.  The number of atoms of each element have to be the same on both sides of the equation (unless, of course, you are converting matter to energy or vice versa  which we don;t much do in chemical reactions).  Notice how Amphibole has made sure the number of atoms on each side of each element are the same.

Ok. But I have the correct reaction?