John W. Lv 7. For instance equation C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but PhC2H5 + O2 = PhOH + CO2 + H2O will; Compound states [like (s) (aq) or (g)] are not required. I suggest that you keep a copy of these rules for balancing redox equations. Nitrogen Dioxide (NO 2) is one of a group of highly reactive gases known as oxides of nitrogen or nitrogen oxides (NO x).Other nitrogen oxides include nitrous acid and nitric acid. N^3+ -2e -->N^5+ Cu2+ +e --> Cu+ Multiply the coppers by 2 , in order to balance the electrons. NO 2 is used as the indicator for the larger group of nitrogen oxides.. NO 2 primarily gets in the air from the burning of fuel. Become a Patron! If you do not know what … Add / Edited: 21.06.2015 / Evaluation of information: 5.0 out of 5 / number of votes: 1. Please register to post comments. Сoding to search: 2 NO2 + 2 NaOH = NaNO2 + NaNO3 + H2O. NO 2 … Nitrous acid (molecular formula H N O 2) is a weak and monoprotic acid known only in solution, in the gas phase and in the form of nitrite (NO − 2) salts. 0 0. NO2- + H2O + 2 Cu2+ → NO3- + 2 H+ + 2 Cu+. You have two oxygens on the LHS and 3 on the RHS so add one molecule of H2O … What is NO 2 and how does it get in the air?. Nitrous acid is used to make diazonium salts from … 9 years ago. …