If a tomato smells rotten, is it a chemical reaction?
148811
At the lowest level, every smell is a chemical reaction.  A rotting tomato results in a smell during the putrefication stage when bacteria begin to eat away at it.  This causes the release of gases such as HS2, Ammonia, methane, and C02.
930948
I think it is when it reacts with the air once it dries. I know that if I have had a hard day (renovating a house at the mo) I can sweat and not smell straight away, but if I don't wash until the next morning there is definately an aroma!! Not that I leave it that long!!I also think it depends on the person and of course what you eat! I could be wrong but I'm just not a smelly person.
692788
You have an reaction to citrus that is stimulating your sympathetic nervous system.  Citrus and tomatoes are common activators of unusual allergic reactions, which can include panic, depression, mania, etc-  If you pay close attention, you may find that your mouth gets dry, your heart beats a little faster, and you feel uneasy or worried-those are also sympathetic responses.
570662
Absolutely. There are different theories on why this is true, but the most common explanation is the break-up of a chemical called mercaptan. That said, asparagus contains a half-dozen sulfur-based chemicals identical ones found in other such lovely smells as rotten eggs, garlic breath and skunk spray. There is some controversy in the scientific community over exactly which by-product, or combination of by-products, causes the asparagus urine smell. The first published study on the phenomenon, written in 1891 by a man going by the name of "Nencki," found that the smell was caused by a metabolite called methanethiol. So far, this conclusion seems about as sound as any.
154135
tomatoes ... or anything acidic like that will cause ...\n\n"Fire in the Hole"
387793
Once I saw a python throw up, and it immediately stunk up the entire room. It looked like there was some kind of hair or something in it. And it smelled like a mix of throw up, rotten meat, and an outhouse after someone just had a bad case of mud-butt.
774965
The absolutely MOST rancid thing I've ever smelled came about when we left a trash can uncovered outside during the rain.  The trash can had about 1 foot of dirt and dead plants at the bottom, then a little bit of food/kitchen trash.   \nSo it rained and the water went in the trash can, then it SAT.  Still for like 7 days.  The small became absolutely PUTRID and RANCID. It felt as though the smell was "louder" and you could smell it from 20 feet away!
228774
Many paints do go bad.  If they smell rotten when opened they should be trashed.
746094
Certain things give off a different smell when heated but mostly I don't think you can differentiate. The sensation of smell is caused by particles of the thing in question not by chemicals released.
802259
Tomato snaps! dont like any of the others
1128995
Scientifically, it is a fruit...a fruit has seeds...so does a tomato...thus it is indeed a fruit.\n\nHowever, the reason why it is classified as a tomato is because of its savoury taste...cooks prefer to call it a vegetable for cooking purposes...\n\nAnd since normal people cook more than learn botany, they prefer to call it a vegetable..even though it is...\n\nA FRUIT!
604475
Carbon itself doesn't do anything at room temperature up to boiling point with sulfuric acid. Might just swim on it and adsorb a little of it (this being a process which gives out a little heat).\n\nIn case your carbon contains impurities, these might react with sulfuric acid and give out some smell and also colour and sediments, depending what the impurities are.\n\n(But the creation of CS2 as mentioned in GforGenius' answer in my opinion is just a joke against people who want to escape from doing their homework from their books and go the easy way on yahoo. If stinks something, the odour mostly comes from H2S (=rotten egg), because impure carbon depending on its origin might contain metallsulfides).
1032659
I recommend using Fresh Wash by Watkins.  Pesticides, fertilizers and human handling can seriously contaminate fresh produce, shortening its shelf life and endangering your health.  Fresh Wash is laboratory-proven to remove over 90% of surface contaminants and impurities.  It gives your produce a much longer shelf life as well!  It's made from humectants from fruits and vegetables so it is very safe as well.
1142708
Pus stinks because it is filled with dead bacteria. The dead bacteria give off gas as they decompose.
1032743
If a female has bad odor in the "southern regions" especially if it's "fishy" then she has something wrong and needs to be checked right away even if she has tried bathing and other things to get rid of it.  Smells are often an indicator of infection.  Unless of course she eats something fishy and then touches her "southern regions" without washing her hands!
915738
no absolutely not !! rotting is an organic process initiated by microorganism in the air. in the space our food is specially sterized and air is constantly refined.So if food is itself is not contaminated i dont think it will rot
1180600
I am assuming you are concerned with the olfactory response of most culinarist while eliminating urine post consumption of Asparagus.  A review of this phenomena has been done.  A quote to give you an idea:\n\n"All investigations in the literature have been subjective, the urine being smelled by individuals (sometimes a panel of individuals) who had been previously shown to be able to positively smell and identify asparagus-related odorous urines. However, with subjective assessment, apprehension always exists concerning the results. "\n\nSo, they can't even decide on who smells what.  Anyhow, the paper is easy to follow, so go have fun, it covers beetroot as well.  As to why it "makes" it through your system so fast, the odor producing chemicals are quite soluble, and serum levels of highly soluble ingested chemicals can be detected in a few minutes.  Try taking a liquid B vitamin supplement a few minutes before you need to relieve yourself.  It gets glowing yellow quite rapidly.  Hope this answers your question.