Physical and chemical change
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Answer:
the change which is reversible is called physical change
the change which is ir-reversible is called chemical change
aryaperceus123:
No... Physical changes can be irreversible too, Many physical changes can be reversed, like water freezing to form ice. But some physical changes cannot, such as an egg being cracked or wood being ground into sawdust...
aya u are right but definition is also right
those both are chemical change because she heet the egg and wood
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Difference between Physical & Chemical change.
Pʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇ:
[1] Change is temporary.
[2] No new product is formed.
[3] It only effect physical properties.
[4] Ex: Burning of wax.
Cʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇ:
[1] Change is permanent.
[2] New product is formed.
[3] It effect both physical & chemical properties.
[4] Ex: Melting of wax.
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