Given the balanced equation representing a reaction 2no+o2-> 2no2+energy the mole ratio of no to no2 is

The mole ratio of NO to NO₂ from the balanced equation is 1 : 1

From the question given, we obtained the following equation:

     2NO + O₂ —> 2NO₂

    2      :    1       :  2

From the balanced equation above,

2 moles of NO reacted with 1 mole of O₂ to produce 2 moles of NO₂

With the above information in mind, we can obtain the mole ratio of NO to NO₂. This can be obtained as follow:

Mole of NO = 2 mole

Mole of NO₂ = 2 moles

Mole ratio => NO : NO₂ => 2 : 2 = 2 / 2 = 1 / 1

Mole ratio => NO : NO₂ => 1 : 1

Therefore, the mole ratio of NO to NO₂ is 1 : 1

Learn more: link