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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...

1 year ago

Answered by Laura, an IB Chemistry tutor with MyTutor


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Lewis M.

Degree: MChem (Hons) in Chemistry with Medicinal Chemistry (Masters) - St. Andrews University

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“Second year biochemistry undergraduate, tutoring for IB/IGCSE chemistry and biology.”

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“Hi I'm Andrés, a chemistry student at the University of Warwick. I have just finished a research degree (MSc) at Warwick where I also studied for my bachelors in biomedical chemistry. I have much passion and enthusiasm for chemistry a...”

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Laura S.

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

Subjects offered: Chemistry, Maths+ 4 more

Chemistry
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“About Me: I am a student studing Combined Honours in Social Sciences at Durham University, specifically Anthropology, Psychology and Politics. Having studied the IB at school, I have an interest in a wide variety of subjects, and woul...”

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