Question

WHAT IS DECOMPOSITION REACTION ? GIVE EXAMPLE ....

WHAT IS DOUBLE DECOMPOSITION REACTION ? GIVE EXAMPLE ....

WHAT IS PHOTOCHEMICAL REACTION ? GIVE EXAMPLE....

Answer 1

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds. These reactions often involve an energy source such as heat, light, or electricity that breaks apart the bonds of compounds.A simple way to visualize a decomposition reaction is to use generic terms. Let's pretend we have discovered an elusive compound with the chemical formula 'AZ.' This means the compound is composed of an imaginary element 'A' bonded to imaginary element 'Z.' If we have a reaction equation that says 'AZ' yields 'A' + 'Z,' it shows a decomposition reaction. This decomposition reaction example breaks one compound down into two elements.
a double decomposition reaction is a reaction in which the postive ions and negative ions in two compounds switch partners to two new compounds
Hcl+NaOH gives rise to NaCl+HOH
a chemical reaction between two compounds in which parts of each are interchanged to form two new compounds (AB+CD=AD+CB)

Answer 2

Examples of photochemical reactions. Photosynthesis: plants use solar energy to convert carbon dioxide and water into glucose and oxygen. Human formation of vitamin D by exposure to sunlight. Bioluminescence: e.g. In fireflies, an enzyme in the abdomen catalyzes a reaction that produced light.



Plz Brain mark