endothermic change
no
The difference is that the endothemic change is when energy is absorbed from the substance and exothermic change is when energy is removed or taken out of the substance.
A change of state is accompanied by a change in an energy level, so it can be caused when energy is put into a substance, or taken out. As an example, when changing state from liquid to gas, that means that the individual particles have so much energy (or equivalently, move so fast) that they can escape from the attractive forces of other particles.
If this is for SOS the answer is chemical.The following answer is incorrect."a change in energy has taken place. when a new compounds is fromed it produces either heat energy, light energy or both."
You might observe a change in color, gas bubbles being formed, a change in temperature (this might require the use of a thermometer, unless the solution actually boils), or you can test for a specific chemical by using an indicator, or analyse the solution by means of a mass spectrometer. Explosions are also a very convincing form of evidence that a chemical change has taken place.
A reaction where energy is taken in.
endothermic change
endothermic change
yes
no
As per my knowledge, when a photograph is taken there is a complex change of CHEMICAL energy to LIGHT energy ..... (Hope this helps you..)
Its where heat is taken in in a reaction eg making a cake is an endothermic reaction as heat is taken in to start it ;)
Energy must be added or taken away.
If energy is released as a result of a process, an exothermic change has taken place. If a constant input of energy is required to drive a physical or chemical change, the change is described as endothermic.
no, endothermic trust me it shows it in my book
The difference is that the endothemic change is when energy is absorbed from the substance and exothermic change is when energy is removed or taken out of the substance.
The same amount of energy that is required to change it from a solid to a liquid. About 334.0 kJ/kg.