Answer:
potassium and fluorine both react and form potassium fluoride.
Step-by-step explanation:
Synthesis reaction:
It is the reaction in which two or more simple substance react to give one or more complex product.
General reaction:
A + B → AB
For example in given potassium and fluorine reaction both react and form potassium fluoride.
Chemical reaction:
K + F₂ → KF
Balanced chemical reaction:
2K + F₂ → 2KF
The oxidation state of potassium is +1 while the oxidation state of fluorine is -1. That's why one atom of potassium combine with one atom fluorine and form potassium fluoride.