Is explosive a physical or chemical change?

An Explosion Is a Chemical Reaction. When an explosion occurs, a solid material of relatively small bulk is transformed into a large volume of hot gases in a fraction of a second. The explosive breaks down chemically, and a great quantity of heat is released.

Why is explosion a chemical change?

UPLOAD PHOTO AND GET THE ANSWER NOW! Solution : Explosion of a cracker is a chemical change because the explosive reactants are transformed into gaseous products along with heat, light and sound which cannot be reversed. Hence, it is a chemical change.

What type of chemical change is an explosion?

One more important section related to combustion is the “explosive” chemical. Explosives are substances that undergo a rapid oxidation reaction with the production of large quantities of gases. It is the sudden buildup of gas pressure (see products above) that constitutes the nature of an explosion.

Is explosion of gunpowder a physical change?

Explanation: Chemical change involves the formation of new substances, and the making and breaking of strong chemical bonds. Clearly, the explosion of gunpowder in air fulfills these criteria.

Why is the explosion of a fire work said to be a chemical change?

The original substance cannot be recovered after the explosion occurs, Hence this is a chemical change.

What is an explosion in science?

An explosion is defined as the rapid increase in volume and release of energy in an extreme manner.

What causes an explosion?

An explosion is a rapid expansion of gases. Many explosions occur when gases are exposed to a source of heat- such as fire, sparks, even static elec- tricity-or an increase in pressure. Explosions can also be caused by chemical reactions.

Is explosion of dynamite a chemical change?

A dynamite explosion is an example of a rapid chemical RXN. All chemical RXNs either release or absorb energy in the form of heat, light, sound or electricity. Chemical bonds are the source of this energy.

Which part of an explosion is not considered a chemical change?

It’s a reaction with oxygen to form new substances. So Choice B is our answer expansion is a physical change.

What happens when an explosion occurs?

An explosion is a rapid expansion in volume associated with an extremely vigorous outward release of energy, usually with the generation of high temperatures and release of high-pressure gases. Supersonic explosions created by high explosives are known as detonations and travel through shock waves.

Which of the following is a physical change?

The correct answer is Melting of ice. Among all the given options, Melting of ice involves a physical change. A physical change involves the changes of state from a solid to a liquid or a gas and vice versa. Boiling water, Ice melting into water is an example of this conversion.

Which of the following is an example of physical change?

Examples of physical changes are boiling, melting, freezing, and shredding.

Is popping fireworks a chemical change?

Anytime a new substance is made, a chemical change takes place. Usually two or more materials are combined and a new substance is formed. A chemical change can produce amazing explosions, like fireworks.

Is the explosion of fireworks a chemical reaction?

Fireworks are the result of chemical reactions involving a few key components — like a fuel source (often charcoal-based black powder), an oxidizer (compounds like nitrates, chlorates that produce oxygen) and a color-producing chemical mixture. The oxidizer breaks down the chemical bonds in the fuel, releasing energy.

What is example of chemical change?

Burning, cooking, rusting and rotting are examples of chemical changes.

Which is not a chemical change?

Sublimation is a process in which the substance’s phase transition occurs directly from solid to the gaseous phase. Hence, it is physical change not chemical. >

What type of change is bursting of crackers?

Burning of crackers is a chemical change because it produces new products with different properties. This chemical change also produces heat, light and smoke. Was this answer helpful?

Is bursting of crackers fast change?

The changes which take place rapidly are called fast changes. The changes which take place slowly are called slow changes. Slow and fast changes are relative. Bursting of crackers is a fast change as compared to the other given options.

What is an explosion Class 8?

Explosion – When a sudden reaction takes place with the release of heat and light and evolution of a large amount of gas takes place it is called an explosion.

What is explosion Short answer?

An explosion is a rapid increase in volume and release of energy. in an extreme manner, usually with the generation of high temperature and the release of gases. examples-fireworks(crackers)

What can cause an explosion without fire?

Dust explosions can occur when any distributed combustible dust is present in high enough quantities in the atmosphere or another oxidizing gaseous media, such as pure oxygen. A fuel-air explosion occurs when fuel is the explosive ingredient in a blast resulting in dust clouds.

Can a fire cause an explosion?

Fire is caused is when a substance rapidly consumes oxygen to produce heat and light. An explosion is an event where energy rapidly expands outward from the source, often creating a damaging shock wave. A fire may not cause an explosion, and explosions can happen without fire.

How are explosives classified?

The class of explosives includes: a) explosive chemicals; b) explosive items, except devices containing explosive chemicals in such quantity or of such a character that their inadvertent or accidental ignition or initiation does not cause any effect external to the device either by projection, fire, smoke, heat or loud …

Why are explosions exothermic?

When a fuel is burning, it releases heat, which can easily be felt. An explosion is also an exothermic reaction. Even if the end result of an explosion is the high pressure generated that pushes everything away from its seat, heat is first produced in great magnitude. All combustion reactions are exothermic.

What are explosives in chemistry?

An explosive substance is a solid or liquid substance (or mixture of substances) which is in itself capable by chemical reaction of producing gas at such a temperature and pressure and at such a speed as to cause damage to the surroundings. Pyrotechnic substances are included even when they do not evolve gases.

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