How many TOTAL atoms are present in this chemical formula? * 2NaBr2 O 2 04 O 6 08

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.

The ratio is 3: 2. i.e. c.