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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.

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15y ago

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Give examples of chemical change?

explosion of fireworks,cooking an egg


Is the the explosion of fireworks a physical change?

Explosiveness (not oxploziveness!) is a property, not a change. But it is a chemical property.


What is different between physical change and chemical change?

A physical change stays the same like tearing paper A chemical change makes the substance something new like fireworks explode (fireworks change to explosion)


What different between chemical change and physical change?

A physical change stays the same like tearing paper A chemical change makes the substance something new like fireworks explode (fireworks change to explosion)


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.


Is exploding of fireworks physical or chemical?

The explosion of fireworks is a chemical reaction. It involves the combustion of various chemical compounds within the fireworks to produce heat, light, sound, and colored displays. The reaction is initiated by a physical process, such as a fuse or electronic ignition, but the explosion itself is a result of the chemical reaction.


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 fireworks a physical or a chemical change?

Are fireworks a chemical change or a physical change? Fireworks are a chemical change because once you lite it, it reacts to the fire.eat dodo doodadsdodo doodads


Is fireworks physical change or chemical change?

chemical


Is exploding of fireworks a physical or chemical change?

I guess it is a chemical change as the exploded fireworks cant be regained back which is possible in a physical change and not in a chemical change.


What is the chemical reaction involve in the explosion of fireworks?

Gun powder and kinetic energy


Is an firework a chemical change?

Use of fireworks is a chemical change.