Question

mention any five difference between physical and chemical change .​

Answer 1

Answer:

physical change is temporary and chemical change is permanent.

Physical change doesn't create any new object but chemical change does.

physical change e.g. folding of paper. Chemical Change e.g. growth of trees, human bodies...

Answer 2

Answer:

physical:

• Physical change is a temporary change.
• Generally, physical changes do not involve the production of energy.
• A Physical change affects only physical properties i.e. shape, size, etc.
• In a physical change, no new substance is formed.
• Physical change is easily reversible i.e original substance can be recovered.

chemical:

• A chemical change is a permanent change.
• Chemical changes usually involve the production of energy (which can be in the form of heat, light, sound, etc.)
• Chemical change both physical and chemical properties of the substance including its composition
• A chemical change is always accompanied by one or more new substance.
• Chemical changes are irreversible i.e. original substance cannot be recovered.