The release of energy can have physical or chemical causes.
NO its a chemical change for it can't be reversed
It is a chemical change because it has oxidation and combustion.Both. There's a rapid chemical change which liberates a lot of heat quickly and some of the material may become a gas, the physical change.Read more: When_firework_explodes_is_physical_change_or_chemical_changeNote: release of heat is not a physical change but only a consequence of a chemical change.
You can tell a chemical reaction has occurred if there is a change in color, formation of a gas, production of heat or light, formation of a precipitate, or a change in properties of the substances involved. These are observable signs that a chemical change has taken place.
Three physical changes that indicate a redox reaction are color changes (e.g., change in solution color), production of a gas (e.g., bubbles forming), and formation of a precipitate (solid substance forming in the solution).
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Heat, light, and change in odor can indicate a physical change depending on the context. For example, melting ice into water is a physical change because it does not alter the chemical composition of the substance. However, if a substance undergoes a chemical reaction that results in heat, light, and change in odor, then it would be considered a chemical change.
Its a chemical change hottie
Heat absorption is a physical change. It can cause a change in state and/or a temperature increase, but the matter that is absorbing the heat does not change. It retains all of its physical and chemical properties that it had before absorbing the heat.
A change in state does not necessarily indicate a chemical change. Melting, freezing, boiling, or condensing of a substance are physical changes that do not involve a change in the chemical composition of the substance.
The release of energy can have physical or chemical causes.
It is a physical change because nothing actually changes in the flashlight or surrounding areas. It's just electricity flowing and a light coming on and some heat produced.
This is both a physical and chemical change. The explosion involves the release of energy (heat and light), which is a chemical change due to the breaking of chemical bonds. The breaking of the wrapper into many pieces is a physical change as it does not involve any change in the chemical composition of the materials.
i think it would be physical because it is still energy.
The heat conductivity of a substance does not involve changes to its chemistry. Heat conductivity is a physical change and characteristic to a substance.