Yeah, definitely. Just wait.
No. The wax gets hard again when it cools. If you heat it again, it melts again. You can keep doing that all day. That means it is reversible.
It is reversible. Once the wax cools down, you'll get solid wax again.
yes;)
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No
i say yes
irreversible change.
no
Melting wax Melting ice freazing water Evaporating the water Cooling the steam
the changes which can be reversed by reversing the conditions are reversible changes. the changes which cannot be reversed by reversing the conditions are irreversible changes.
Yes it is!:Pwhen a candle is lighted the solid wax changes into liquid wax,then it turns into vapour to produce flame.new substances like Co2 and H2O are formed alongwith the evoulation of light and heat.
irreversible change.
no! because burning is never a reversible change as heating is a reversible change e.g chocolate melting
no
areversible action produces new material
yes!
Melting wax Melting ice freazing water Evaporating the water Cooling the steam
You can easily un-melt it, i.e., wait for it to cool down and get hard again. However, the energy required for melting can't be recovered (useful energy gets converted into unusable energy), so in that sense, this process (and most processes in nature) are irreversible.
No, it is not.
The burning of the match is irreversible because it cannot be undone. If the candle is made of regular wax and not the dripless kind, you can take the melted wax and make another candle out of it , just without a wick, which would have been destroyed in the first melting, making it an irreversible change as well.
The wax of the candle melts and then rehardens. This is a physical change and reversible
the changes which can be reversed by reversing the conditions are reversible changes. the changes which cannot be reversed by reversing the conditions are irreversible changes.
Melting candle wax is a chemical change. Why? Because when you cook or burn candle wax it melts so it is a chemical change.