Color Of Fire Research Paper

e) Meat darkening when it is heated on the grill is a chemical property because it describes a behaviour of a substance during a chemical reaction. The raw meat is being changed into cooked meat, the proteins are being altered.

1. Which reactants used in this experiment are flammable? Discuss the safety precautions that are necessary when working with flammable materials in the lab?

Observe the characteristics of flame colour. Then compare the observations with a table describing the colors various metals produce.

Photography is the art of taking and processing pictures from a camera. The word “photography” comes from the Greek word “photos” (light) and “graphein” (to draw). I personally chose this topic, because I find photographs very interesting. One of the things I find interesting about it is that, several people could be looking at the same photograph, yet everyone has a different perspective on a certain picture. Now I don’t know much about photography, so I’ll be learning as much as you are based on my research. I never even thought that photography could be related to chemistry in so many ways. Silver and Sunlight had been the main objects needed for earlier photography, it was also a modern innovation during the Industrial Revolution.

One type of chemical reaction, called combustion, involves the burning of various compounds and elements. Some substances are more

There was an assortment of different changes indicating that chemical changes were taking place such as change in color or chemicals bubbling when combined with another chemical.

3. The “new” substances that were formed as a result of chemical change were many. When I took the candle and lit it, it burnt and formed smoke. When I took the wooden split and lit the paper on fire, the color around the green paper changed to be brown, burnt and changed into ashes. Also, I poured Hydrochloric acid and magnesium ribbon in a test tube and it started bubbling and it heated up in the bottom.

Chemical and physical properties of substances are due to the structure and arrangement of atoms, ions or molecules and how these interact with each other

1- Different elements give off different colors when heated because electrons go farther the nucleus, or to an upper energy level, and once they go back to their original orbit (energy level), they release colors because of the amount of energy released. This also happens because different elements are in different orbits and they hit different orbits as well.

Chemical changes are often accompanied by physical changes. Three that you should not see in this lab are changes in temperature, presence of a flame, and evolution of light, as when as firefly glows. Three physical changes that indicate a chemical change may have occurred (and that may be seen in this lab) are:

The Chemical Baggies Lab demonstrated to students how certain chemicals cause diverse chemical or physical changes depending on what substances were mixed together in a designed controlled experiment. During the process of this experiment, almost identical observations were made about different combinations of chemicals that had at least one substance in common. For example, the frequent observation that was made throughout the experiment was that heat was felt. Even though there were distinct chemical combinations, there was one substance that generated a certain observation or characteristic, such as a mixture has to comprise of the phenol red for there to be a color change, which was learned from this lab. Also, calcium chloride

Absorption lines are created when light from something hot like a star passes through a cooler gas, cancelling out the emission lines the chemicals in the gas would normally create. When you look at the spectrum of a star, for example, you can see absorption lines because the star's outer atmosphere is cooler than the central part, explains Watson. in such an analysis of chemical abundances, the wavelength of each line is treated as fixed. However, this is not true when the star is moving towards us (the lines are observed at shorter wavelengths, or 'blueshifted, than those measured in the laboratory) or moving away from us. If the spectrum of a star is red or blue shifted, then you can use that to infer their velocities along the line of sight. During the first half of the 19th century, scientists such as John Herschel, Fox Talbot, and Willam Swan studied the spectra of different chemical elements in flames. Gradually, the idea that each element produces a set of characteristic emission lines has become established. Each element has several prominent, and many lesser, emission lines in a characteristic

HEATING OF DIFFERENT METALS DISCUSSION: In metal elements, some of the electrons (often one per atom) are not stuck to individual atoms but flow freely among the atoms. Of course, that's why metals are such good conductors of electricity. Different elements have different flame colors because their electrons have different energy levels.

Any element placed in a flame will change its color. If the elements were left alone, the electrons of an atom tend to ease off into orbitals that leave the atom with the lowest at all possible energy which is its “ground state.” Different metal atoms have different separations between their ground and excited states. This means that they give off different amounts of energy when electrons fall from the excited state to the ground state. An excited state refers to an atom with electrons that are at a higher energy level that is necessary. The ground state is the lowest at all possible energy level. If an element of an atom had a small energy gap, a low energy light will be given off as excited

When elements are heated they emit light at certain wavelengths which we perceive as colors. Spectroscopy analyzes all the wavelengths in a particular beam of light and this information can be used to determine what elements the source of the light contains. So with any object that emits light, we can determine what