Question

Formation of hydrogen chloride from hydrogen and chlorine is an example of
[photochemical reaction/electrochemical reaction).
​

Answer 1

Answer:

Formation of hydrogen chloride from hydrogen and chlorine is an example of photochemical reaction. The reaction of hydrogen burning in oxygen to give a neutral liquid is an example of [exothermic/ endothermic] reaction.

Answer 2

Answer:

photochemical reaction

Explanation:

A photochemical reaction is a chemical reaction triggered when light energy is absorbed by a substance’s molecules.This response leads the molecules to experience a temporary excited state, thus altering their physical and chemical properties from the substance’s initial molecule.