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Examples for exothermic change are burning of fuels or coal, burning of a fire cracker and glowing of an electric lamp.

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15y ago

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Is freezing an example of an exothermic chemical change?

No because in an exothermic change energy is released not taken in. Melting would be an example of exothermic change.


What chemicals reactions give out heat which involves change color?

These are exothermic reactions.


Is fireworks an example of exothermic change?

It's a exothermic reaction because heat and light is being released.


Is freezing an endothermic change or a exothermic change?

It is an exothermic change


A change of state where energy is given off?

This process is called exothermic reaction, where energy is released in the form of heat. It typically involves a change from a higher energy state to a lower energy state, resulting in the release of energy to the surroundings. An example would be the solidification of molten lava into solid rock, releasing heat energy in the process.


Which of the following phase changes is not correctly paired with the sign of its change in enthalpy?

The phase change of sublimation is not correctly paired with the sign of its change in enthalpy. Sublimation involves the transition from solid to gas phase without passing through the liquid phase, and it is an endothermic process where heat is absorbed. The other phase changes—melting (endothermic), freezing (exothermic), vaporization (endothermic), and condensation (exothermic)—are correctly paired with the sign of their change in enthalpy.


When energy is given off as heat the physical change is said to be?

Exothermic


Compare endothermic and exothermic?

An endothermic change requires heat, and an exothermic change releases heat.


What change is the opposite of an exothermic change?

endothermic change


How do you know that the burning of candle of wax is an exothermic change?

An exothermic reaction involves the release of heat into a system. The burning of a candle is combustion reaction. Combustion reaction release heat, and this can be detected and measured by the burning of a candle's wax. From these testable observations it is determined fact that candle burning is indeed exothermic.


Is burning a match an endothermic or exothermic change?

Burning a match is an exothermic change because energy is being released.


How do you use exothermic change in a sentence?

Jack recorded the exothermic change as the reaction progressed