Question

please answer fast please please please please my exam please please​

Answer 1

Answer:

Ag2Br (balanced answer on left side)

use

it is used in photography

Answer 2

Explanation:

Photochemical reactions are those which occur in the presence of light.

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds upon absorption of energy in the form of heat, light, or electricity that breaks apart the bonds of compounds.

A combination reaction is a type of chemical reaction in which two or more elements or molecules combine/ form chemical bonds to yield single compound. Bond formation is assisted by the release of energy.

Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound. Both metals and non-metals take part in displacement reactions. Example: Reaction of iron nails with copper sulphate solution.

Reaction given:

2AgBr -2Ag +Br2

uses light for breaking bond and forms new molecules. its an example of photochemical decomposition reaction......