Your image might not develop at all. If your developer has been contaminated by fixer you should discard the solution and mix up fresh before developing your film. Fixer is acid. Developer is alkaline. All other things aside, the acid in fixer will neutralize at least some of the alkali in developer, causing the developer to slow down or stop working altogether. Your image would either be underdeveloped (at best) or not developed at all.
As an aside, one reason for using a mildly acid stop bath between the developer and the fixer is to neutralize the alkali in the developer before it's carried into the fixer. This will make your fixing bath last longer.
The chemical on the paper will be fixed and wont develop.
fixer has contaminated the developer
In Fixer you can find Sodium thiosulfate :Na2S2O3·5H2O and Ammonium thiosulfate: (NH4)2S2O3 for black and white photography, in purpose to remove unexposed silver halide.They can not be found in developer ! In Developer for black and white photography: Metol,Phenidone and Hidroquinone for purpose chemical that makes the latent image on the film or print visible!
Depends what kind of print you are developing. For a black and white print, you typically use developer, stopbath, and fixer.
The percentage of silver used in fixer solution is over 99%.................
yes
developer-brings up the image stop bath-halts the action of the developer fixer-clears image and makes it permanent//no longer sensitive to light
To prevent oxidation of the solutions and escaping fumes
You must use fixer. If you don't, the undeveloped silver halide will remain in the film, and you won't be able to get light through it--hence the negatives will be useless.
depleted fixer solution
Silver is extracted through a process called electrolysis from the hypo fixer solution, which contains silver ions. The solution is electrolyzed using a cathode, which attracts the positively charged silver ions, causing them to plate onto the cathode surface, thus extracting the silver from the solution. This process is used to recover silver from spent fixer solutions in photographic processing.
Acetic acid, also known as vinegar, is used in a darkroom as a stop bath solution to halt the development process of photographic prints. It helps neutralize the alkaline developer solution, preventing further development of the image on the print.