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Although the firecracker gets its energy from a chemical reaction, most of the damage it does is physical from the shockwave coming from it as it explodes. Very near the explosion there will also be some chemical damage as the burning explosive can burn some its surroundings - and burns are a type of chemical damage.
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Are exploding fireworks an example of a physical or chemical change?
Exploding fireworks are an example of a chemical change. The chemical compounds within the fireworks undergo a chemical reaction when ignited, resulting in a new substance being formed that releases energy in the form of heat and light.
Is a bomb exploding a chemical or physical change?
It is usually a chemical change.
When a firecracker explodes giving off light and heat and breaking the wrapper into many pieces is that a physical change chemical change or both?
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.
Is exploding dynamite a physical or chemical change?
Exploding dynamite is a chemical change because the chemical composition of the dynamite changes due to the rapid reaction that occurs when it detonates. This results in the release of energy and the formation of new substances.
Is the explosiveness of fireworks a physical or chemical change?
The explosiveness of fireworks is a chemical change. It occurs when the chemical compounds in the fireworks undergo a rapid chemical reaction, resulting in the release of energy in the form of heat, light, and sound.
