heat is released in exothermic reactions that involve bond formation such as a ______ in which one _____ repla

Question

heat is released in exothermic reactions that involve bond formation such as a ______ in which one _____ replaces another, depending on __________.

this problem is on the HSS book page 179 and
number of this question is 26.

this is concept map but i changed way to answer it like this.

please fill right words on blank line,

Answer 1

reaction
atom
bond enthalpies