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Where can one buy a Nikon Coolpix S203?
The Nikon Coolpix S203 can be purchased at many different retailers. Some of the online retailers include Best Buy, Amazon, eBay, Walmart, and Sears.
What is the name of the compound S203?
The compound with the formula S2O3 is called disulfur trioxide.
What is the name of V2O5?
The chemical name for V2O3 is Vandium Trioxide.
What chemical reactions take place in photography?
Several different chemical processes have been used in photography. Some of the earliest used silver salts that darkened on exposure to light. These salts were coated on metal plates and then had an image projected on them through a lens. Daguerreotypes used silvered copper plates that were exposed to iodine and bromine vapors to convert the surface silver to silver iodide and/or silver bromide. Once the image was created by exposure to light, the image was made permanent by exposing the plate to mercury vapor which probably formed an amalgam with the sliver in the lighter areas that stuck to the plates. After development, the plates were washed with a hot salt solution which removed the silver from the darker areas where the mercury had interacted less with the silver. More modern black and white photography uses grains of silver halides suspended in a gel. The chemistry of exposure is typically something like: Ag+Br- (crystal) + hv (radiation) --> Ag+ + Br + e- The silver ion can then combine with the electron to produce a silver atom. Ag+ + e- --> Ag0 Association within the grains produces species such as Ag2+, Ag20, Ag3+, Ag30, Ag4+, and Ag40. The grains containing the free silver in the form of Ag4º are readily reduced by chemicals referred to as "developers" forming relatively large amounts of free silver; the deposit of free silver produces a dark area in that section of the film. The developer under the same conditions does not significantly affect the unexposed grains. Silver halide developers include: p-Dihydroxybenze, Monomethylparaminophenol,1,2,3 Trihydroxybenzene, p-Aminophenol, Diamonophenol, and 1-Phenyl-3-pyrazolidone. Once the exposed image has been developed to the desired degree, it is necessary to halt the chemical process quickly to prevent over-development and the production of fog. The solution used to that end is referred to as the "stop" bath. Since developers function a relatively high pH's, the typical stop bath is simply a solution of acetic or some other weak acid. The action of the acid is so rapid it usually requires only seconds for the process to be effectively halted. The silver halides are only slightly soluble in water; therefore, to remove the material remaining after development it is necessary to convert it to soluble complexes which can he removed by washing. Sodium thiosulfate, commonly termed "hypo," has been used for this purpose since 1839. The reactions in fixing can be written as follows: AgBr + S2O3-2 --> AgS2O3- + Br- (adsorption complex) which is followed by AgS2O3- + S2O3-2 --> Ag(S203)2-3 (desorbed) and by Ag(S203)2-3 <--> AgS2O3- + S2O3 -2; AgS2O3 <--> Ag+ + S2O3-2 Recovery of the dissolved silver complexes is rather important in order to make this process affordable, so the used "hypo" is saved for later processing.
What are the Mercedes model codes?
Hi guys, heres your (perfect) answer. you out 190 Series (W201) 200/300 Series (W/C/A/S124) SE/SEC Series (W/C126) A-Class (W168/V168/S168) pre 2005 A-Class (W169) post 2005 B-Class (W245) C-Class pre 04/2000 Saloon (W202) pre 02/2001 Estate (S202) C-Class post 05/2000 Saloon (W203) post 03/21001 Estate (S203) and sports coupe (CL203) E-Class pre 02/2002 Saloon (W210) pre 02/2003 Estate (S210) E-Class post 03/2002 (W211) Saloon and (S211) Estate SLK-Class pre 03/2004 (R170) SLK-Class post 03/2004 (R171) CLK-Class pre 05/2002 (A208/C208) CLK-Class post 05/2002 (A209/C209) CLS-Class (C219) R-Class (W/V251) S-Class pre 09/1998 (W140) S-Class post 09/1998 (W220) S-Class post 2006 (W221) CL-Class pre 03/2001 (C140) CL-Class post 03/2001 (C215) SL-Class pre-1990 (R107) SL-Class 1990-09/2001 (R129) SL-Class post 09/2001 (R230) ML-Class (W163) pre 2005 ML-Class (W164) post 2005 V-Class (110/113/W638) G-Class (W460/463) VITO (108/110/113/W638/1/2) VITO POST-2005 (W639) VIANO (W639) VANEO (V414) Greetzz from a mercedes-fan and mercedes-geek ;P
