Some mercury (ii) oxide breaks down to form 32g of oxygen and 402g of hg. how many grams of mercury (ii) oxide were used in the reaction? A. 2
B. 307
C. 400
D. 402
E. 434

U whay do you need with?

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.

Answeropposite;

Answerionic bond imfs are stronger than covalent;