Question

Define chemical combination reaction with two examples

Answer 1

There is no specific number of reactants in a combination reaction. Combination reactions are usually exothermic because when the bond forms between the reactants, heat is released. For example, barium metal and fluorine gas will combine in a highly exothermic reaction to form the salt barium fluoride: Ba + F2 → BaF2.

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Answer 2

when two elements together and form one compound is called combination reaction

1) Na + cl ---------> NaCl

2) H+oH --------> H2o