Question

a white coloured salt silver chloride is placed in sunlight in a watch glass. state your observation. write a balanced chemical equation for this reaction. identify and define this type of reaction.

Answer 1

2AgCl == 2Ag + Cl2

Step-by-step explanation:

when a white colour salt silver chloride is placed in a sunlight in a watch glass decomposition by sunlight takes place and this type of reaction is takes place when a single compound breaks down into two or more reactants name the energy is supplied in the form of Sunlight the following is the chemical equation for for this reaction

2AgCl == 2Ag + Cl2

Answer 2

When white silver chloride is exposed to sunlight, thermal energy excites the silver atoms which appears in flakes and it is black in colour which overtime spreads over to the silver chloride which is white in colour and turns it grey.

This reactions with sunlight dissociate the silver atoms into silver metals and chlorine molecule and it's called PHOTOCHEMICAL REACTION, since its requires energy in form of light to be initiated. Silver chloride are kept in amber bottles away from sunlight so as to prevent this decomposition.

Sunlight

2AgCl —————》 2Ag + Cl2