what is chemical and physical changes
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A physical change is any change in a substance's form that does not change its chemical makeup. Examples of physical changes are breaking a stick or melting ice. A chemical change, or chemical reaction, occurs when atoms of a substance are rearranged, and the bonds between the atoms are broken or formed.
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Physical Change-:
- the change that involve by change in the physical properties of a substance such a change of state change in texture change instant save size colour volume density are called physical change.
- temporary change
- no new substance formed in physical change.
- some example of physical changes are stretching of a rubber band melting of wax etc .
- almost all physical change or temporary.
- most physical change or reversible.
Chemical Changes -:
- colourful light of burning cracker dazzling in the sky at night during a celebration rest on iron article and rusting of iron or example of physical change.
- the change that involve by change in the composition and chemical property of substance called chemical change.
- in chemical change new substances formed.
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