Part 3 – Combustion Reactions. Remember that all combustion reactions will always from the same products! 7. ___CH4 + ___O2à
8. ___ C2H8 + __O2à

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What is the gold assay

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.