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In a fireworks show the fireworks explode giving off thr heat and light.Is it a physical or chemical change.?
The explosion of fireworks is a chemical change. This occurs because the combustible materials in the fireworks undergo a chemical reaction when ignited, resulting in the production of new substances, such as gases and light. The release of heat and light is also indicative of this chemical reaction. Physical changes, in contrast, do not involve the formation of new substances.
Is fireworks an example of an endothermic reaction yes or no?
No. Fireworks involve exothermic reactions where chemical energy is converted into light and heat.
How is explosion of fireworks a chemical change?
Explosions could be caused by a chemical reaction, or they could have a mechanical cause. It could even be nuclear. If a stick of TNT goes off, it's chemical, while a compressed gas cylinder with a failing weld that explodes while being filled is mechanical. A nuclear weapon is driven by nuclear reactions. All involve a rapid and violent release of energy. The thing that makes an explosion is the speed of the activity, whether it be chemical or mechanical. A high explosive anti-tank round is a chemical weapon, while a ballistic "spear" (perhaps made with depleated uranium) used to defeat modern armor is a mechanical weapon.
Is fireworks a physical change?
Yes, fireworks involve a chemical reaction where the materials inside the firework combine to produce light, heat, and sound. This chemical reaction is not reversible, so it is considered a chemical change rather than a physical change.
Are fireworks an example of physical or chemical change?
Chemical change. A good hint for this one is that there is fire involved, which usually means that the chemical itself is being changed. The constituent materials oxidize (burning quickly - explosion - is very rapid oxidization) and form new compounds i.e. the chemicals change.
Was the gas explosion in Allentown a chemical event?
An explosion involve generally chemical reactions.
Is fireworks an example of exothermic change?
It's a exothermic reaction because heat and light is being released.
What is changed in fireworks to create nuclear and chemical energy?
Fireworks certainly don't involve nuclear energy!
Is fireworks a chemical or physical change?
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.
Is explosions chemical or physical?
Explosions are typically classified as a chemical reaction. Chemical explosions involve a rapid release of energy due to the breaking and forming of chemical bonds in a highly exothermic reaction.
What kind of reaction does a firework make?
Fireworks involve combustion and thermal decomposition reactions.
What type of simple chemical reaction takes place in fireworks?
Fireworks typically involve a combustion reaction, where a fuel (such as gunpowder) rapidly reacts with an oxidizer (such as potassium nitrate) to produce heat, light, and gases like carbon dioxide and nitrogen. Different metal salts are added to produce the vibrant colors seen in fireworks.
