0
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.
Wiki User
∙ 6y ago
Wiki User
∙ 6y agoYes it is.
Add your answer:
Earn +20 pts
What type of reaction occurs when a candle is burned?
There are 2; the melting of the candles wax is physical but the wick burning is chemical.
What is an example of phsical change?
Wax melting from the candle.(it has the same properties in liquid state too)
Examples of a physical change?
Change of state (melting freezing etc), change of shape (being molded into something), and basically anything that does not actually have the matter change, but the physical property (exceptions are odors colors etc). Hope this helps.
How can you explain the physical change of a burning candle using the big idea of energy?
Well it is simple when you think about it reallly. The wax melting from the heat of the flame is the physical change. It will turn turn into a liquid and then later solidify.
What physical property makes wax good for making sculpture molds?
melting point
Is a wax burning a reversible change?
no! because burning is never a reversible change as heating is a reversible change e.g chocolate melting
Is a wax melting a reversible?
yes!
Give 5 examples of a reversible change?
Melting wax Melting ice freazing water Evaporating the water Cooling the steam
Is melting of wax reversible or irreversible change?
Yeah, definitely. Just wait.
Is Burning of wax reversible change?
No, it is not.
Name one reversible change when a candle burns?
The wax of the candle melts and then rehardens. This is a physical change and reversible
Is the melting snow a reversible change or not?
yes it is. because you can freeze it and melt it
Is melting wax physical property?
Melting candle wax is a chemical change. Why? Because when you cook or burn candle wax it melts so it is a chemical change.
What are Reversible objects?
If something is reversible it can be changed back . Melting is a reversible change - the liquid can be changed back into a solid by freezing
What is the chemical change for melting of wax?
Melting is a physical process.
How is melting different from reacting on a chemical level?
Melting is a reversible change of state, whereas a chemical change is irreversible.
Is candle wax melting physical property?
Melting candle wax is a chemical change. Why? Because when you cook or burn candle wax it melts so it is a chemical change.
