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Is breaking bonds endothermic or exothermic?

A quick way to remember this is BENDO MEX:

Breaking bonds is ENDOthermic = +ve enthalpy change

Making bonds is EXothermic = -ve enthalpy change

Laura S. GCSE Chemistry tutor, GCSE English tutor, GCSE Biology tutor...

2 years ago

Answered by Laura, an IB Chemistry tutor with MyTutor


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Marek W.

Degree: Biochemistry with German for Science (Bachelors) - Imperial College London University

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Degree: Biomedical Science (Bachelors) - Kings, London University

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“My name is Anna Liisa Jalakas and I am a biomedical sciences student. I completed my IB diploma in June of 2016 where I achieved a total of 40 points with a 7 in Biology and Economics, and a 6 in Chemistry. I also have IGCSE qualifica...”

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Laura S.

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Degree: Combined Honours in Social Sciences (Bachelors) - Durham University

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