if you use soap to wash your hands, does the soap get dirty?

LoL... That's a funny question.

Yes.. sort of.

Put simply, the soap molecule takes the form of a salt (sodium) atom attached to a string of carbon atoms. The salt atom is hydrophilic, whereas the carbon chain is hydrophobic (repelled by water). Several soap molecules can (and will) gather near each-other when immersed in water, such that the salt molecules sit in a spherical arrangement, with all the carbon chains inside that sphere.

Dirt and grease get trapped in that sphere (micelle), which expands to contain that matter. Each micelle can only expand by a limited factor, after which it will absorb no more dirt -- it is not possible to remove an infinite amount of grease using a single bar of soap. The full micelles take on the colour of the dirt they contain, and stain the water they are suspended in. In a small twist of irony, if you do not wash the soap after you use it, this dirty soap/water suspension will make the actual bar of soap dirty.

Yes, the soap actually traps the dirt and oils from your skin inside of itself and gets washed down the drain.

yes the soap gets dirity. try looking at a bar of soap after doing repairs on the car :)

rinse the bar of soap of after you wash your hands. if you have liquid soap, you have nothing to worry about!

Yes, if it's bar soap.

The best way to avoid "contamination by soap" is to use a liquid. (But don't touch the pump nozzle with your newly-clean hands!)

Yes it would, l always use liquid soap for this reason.

yes it does, always wash it after you wash your hand. or else, use liquid soap.

Yes, that why you need to wash it off.

no, because soap is designed to remove and not to absorb dirt from whoever who used it....

Yes, it does.

A simple rinse will clean it up though.