Question

what is the difference between reversible, physical and irreversible,chemical change

Answer 1

reversible chemical changes are the changes which could be reacted and can be formed into another element and can be reversred into same from as frist for ex ice. physcial changes are a type of reversible change know irreversible chemical change this types of chemical changes could not reversised for ex water when we heat

Answer 2

Answer:

• Physical change

1. When the physical state of the substance changes but it's chemical composition remain same, then it is said that a physical change has taken.
2. Physical change is often temporary in nature.
3. During physical change, new substances are not formed.
4. Example: Condensation of steam, Evaporation of water, melting of ice, melting of wax.

• Chemical change

1. A chemical reaction is a process in which substances undergo bond breaking and are transformed into new substances by formation of new bonds.
2. Chemical changes remain permanent.
3. During chemical change, composition of matter changes.
4. Example: Burning of wood, Rusting of iron, Ripening of fruit.