Using the values given of standard enthalpies of formation, calculate the ΔHreactiono for the formation of NO2(g). 2NO(g)+O2(g)⇋2NO2(g)

O2(g): 0 kJ/mol
NO(g): 90.25 kJ/mol
NO2(g): 33.18 kJ/mol

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Sorry i dont understand the question can you rephase it?

Ch3cooh i think this is the answer

According to arrhenius theory of acid and bases, an acid is a proton donor, while base donates hydroxyl ions. further, acid and base reacts to form salt and water.consider following example.hcl    +      h2o          →      cl-          +      h3o+here, hcl has donated a proton, hence it is an acid.now consider following reactionhcl      +      naoh            ↔      nacl      +        h2oin this reaction, hcl donates proton, hence it is acid. on other hand, naoh donates hydroxyl ion (i.e. hence it is a base.