changes
Chemistry chapt
,Exam question notes
Bond energy = reactants – products
(-) numbers are exothermic as energy is released into the
surroundings
Questions that ask you to describe why something is exothermic o
endothermic always talk about bond making and breaking
,Energy
Energy is needed to break bonds
Energy is released when making bonds
, Exothermic
Energy needed to break bonds is less then energy released when
products are formed