examples of chemical change burning of wood or paper burning of camphor souring of milk burning of candle digestion of food there is a difference in energy during the breaking and making of bonds. the energy is given out to the surroundings if the energy required to break the bonds is ...
If we return to the candle and the plant, we can illustrate this. For the candle, the potential energy is contained in the candle wax, and the oxygen is released. It is then transferred into the potential energy of the products. The extra energy left over is transferred out as heat. Ex...
For example:The tearing of a sheet of paper into pieces of paper is a physical change but the burning of a sheet of paper is a chemical change. The melting of wax is a physical change but the burning of wax is a chemical change. So, when a candle burns, then both physical and ...
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