%3D 13) Consider the reaction, C2H4(g) + H2(g) → C2H6(g), where AH = -137 kJ. How many kilojoules are released when 55.3 g of C2H4 reacts?

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Q: help question 12

A: Step 1:Step 2:Hence,

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Q: help question 11

A: Step 1: Step 2: Step 3: Step 4: