The brilliant colors you see when the fireworks explodes comes from a wide variety of metal salts that are packed inside the firework. Now, when most people think of salt they're thinking of the white crystals they sprinkle on their food. That is a salt, but it's not the only salt. That's sodium chloride (NaCl). A salt is any metal atom bound to a non-metal atom. In the case of table salt, sodium is the metal and cholrine is the non-metal. When these salts burn they absorb energy, exciting electrons in the atoms. The excited electrons jump up to a higher energy level, but they are very unstable in that higher energy state. When the electrons relax back to their low energy state they release a photon of light. The color of light changes depending on the metal salt that is used. So, for example, strontium salts burn red, calcium shines orange, green is from barium, white is from magnesium, and copper shines a beautiful blue. Combinations of these salts yields the combinations of their colors (strontium and copper shines purple).
yes some chemical reactions are harmful to us. as digestion of food, photosynthesis, decomposition of organic waste are some examples of the useful chemical reactions.
Chemical bonds are made and broken by chemical reactions. After chemical bonds have been broken, then energy is released, and if a chemical bond is made, then energy is absorbed.
Chemical reactions are described based on observations. It may be in terms of changes in color, state of matter, or density.
The three types of chemical reactions are: synthesis, decomposition, and replacement.
1. Skin and respiratory allergic reactions 2. Baking soda and vinegar 3. Caustic soda exposed to liquid 4. Many different forms of acids exposed to almost everything will cause an immediate chemical reaction
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.
No. Fireworks involve exothermic reactions where chemical energy is converted into light and heat.
After the fuse has been burned
The explosiveness of fireworks is a chemical property because it is a result of the chemical reactions that occur within the fireworks composition. The specific combination of chemicals and their reactions determine the colors, sounds, and overall explosiveness of the fireworks.
Fireworks and wood burning are good examples of fast chemical reactions =]
Nuclear energy is not produced when chemical energy stored in fireworks is transformed. The chemical reactions in fireworks release thermal (heat), light, and sound energy, but not nuclear energy.
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.
it is a chemical change because when they explode they are no longer able to return to normal form.
The principle is based on chemical reactions.
chemical equations
Fireworks involve both physical and chemical changes. The lighting of the firework (ignition) is a chemical change that triggers a series of reactions which results in the colorful display seen (physical change) as different elements are heated and produce light.
Yes, exploding fireworks release energy in the form of heat, light, sound, and kinetic energy. This is due to the chemical reactions that occur within the fireworks as they ignite and combust.