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

LS

Related Chemistry IB answers

All answers ▸

Butan-2-ol cannot be directly converted to 1,2-dibromobutane. The conversion can be carried out in two stages by first converting butan-2-ol into X, which is then reacted with bromine.(continued in answers)


I don't understand how to calculate initial rates of reaction based on experimental data


Sort the following substances MgO, Na, H2O, H2S, NaCl, in the order of increasing melting temperature.


How can we determine the molecular and electron geometry of H2O?