how does vinegar affect a penny?
413812
Vinegar is sour wine. Acidity of less than 5% by volume. Cleans copper or bronze by removing the patina and exposing the bare metal. The best cleaner for pennies is a quick dip into Ammonia. Dry quickly. and repeat until the desired shine is found.
577586
you should probably solve this for yourself. BUT.\n\nsoda/vinegar in a bottle could easily inflate a balloon around the mouth og the bottle, and if the balloon were next to a lit candle, could easily blow the candle out when it pops (because it hit the candle flame)...
238051
Sometimes the vinegar in the salad dressing is known to aid in digestion.  Vinegar will also release more of the protein and vitamins in the meat and other foods.  Search vinegar on Yahoo.  \nDon't know what to tell you about the other.  Possibly try Citricel.
650391
A neutralization reaction occurred between the acetic acid in the vinegar and the baking soda (sodium bicarbonate) to produce sodium acetate and carbonic acid, which decomposed to form water and carbon dioxide.  Since the chemical species are different now than they were before the reaction started, a chemical change has occurred.
559772
vinegar is a solution of acetic acid (9% in water). Acetic acid (CH3COOH) is a weak acid that disolve rust (FeOOH according ones or Fe3O4 according another ones)\n\nSo, a soluble salt is obtained: (CH3COO)3Fe
673887
Try using cider Vinegar
41206
I used to use some stuff called "CLR" that used to work fairly well.  I've been told coke will work, vinegar, basically anything acidic will "eat" the gunk off.
132007
Vinegar is basically acid.  Depends on the plant, as some like acidic conditions, and if the soil was too alkaline, vinegar would make it grow better.  But if the plant liked alkaline conditions, vinegar would kill it.  \nAlso depends on the strength of vinegar solution, how often applied, etc.\n- Don't use vinegar as a pesticide.  You are more likely to kill your plant than any pests.
43844
No - vinegar is just a very mild acid - much milder than your own stomach acid.  \n\nPeople have been consuming vinegar for thousands of years in pickles, cooking and salad dressings.
735250
vinegar is watered down acetic acid (HC2H302). It's usually 5% acidic. made from the oxidation of ethanol in wine, cider, beer, fermented fruit juice etc.
518749
vinegar and lots of water
924662
I did a demonstration on the affects of acid rain on plants once.  I used 5 identical, healthy house plants and watered them everyday with varying ratios of a water:vinegar mixture.  Pure water, 5 parts water:1 part vinegar, 5:2, 5:3, 5:4 and so on.  I recorded my observations each day for 10 days.  The impact that the acidity had on the plants with high vinegar ratios was pretty neat to watch and document.  You of course would have to explain how the vinegar acted like acid rain would but there are plenty of resources for this on the net.
957597
No... Merchants already make adjustments for the worthlessness of the penny by give adjusted change, - or by having a give-and-take "thingy" near the register.\n\nBesides, taking it out of circulation will just cause people to hoard them, - thinking that they will be valuable.
604444
Vinegar is a weak acid (Acetic Acid, HC2H3O2).\nAmmonia [and/or Ammonium Hydroxide] is a weak base (NH3 + H2O --> NH4OH).\n\nBy "weak", I am not refering to the reactivity of the substances, but rather the amount the substances will dissassociate into ions in solution.  A weak acid/base will not dissassociate completely into ions in solution as would a "Strong" acid/base would.\n\nWhen you react an acid and base together, you get a neutralization reaction which produces water and a salt.\nIn the case of Ammonia and vinegar, the salt you would producce is Ammonium Acetate (NH4C2H3O2).
748449
through out the thousands of years, the wind has shifted dirt and debris on top of it. \nJust think, say you dropped a Penney in your yard, and came back a year latter to get, leave would have decomposed into dirt, grass would have shifted, and you would have to move stuff around to find the penny.
600507
Chop it off!  Why did you put vinegar onto a brown spot anyways!!  Put baking powder onto it if you want to reverse the effect of the vinegar.
609733
*Edit:  Pennies minted before 1982 are no big deal.  Also, if you eat really full meals for two or three days straight to expand your stomach, it should pass through the GI tract and poop out.\n--\nHere, I found you an interesting article that relates the zinc in pennies with stomach ulcers, kidney and liver issues in children.  Appartently pennies that are minted after 1982 contain high zinc content (zinc is cheaper than copper -- probably the reason), and the zinc reacts with the hydrochloric acid in the stomach to form zinc chloride.  Zinc chloride is much more corrosive than hydrochloric acid alone, and would be enough to burn through the mucous lining of the stomach.  Coupled with the hydrochloric acid already in the stomach, it's bad news in terms of stomach ulcers and possible internal bleeding.\n\nI would assume that with adults, the toxicity in relation to the kidney and liver would be reduced due to body mass.  However, I would predict that the ulceration of the stomach would be similar in both children and adults.\n\nWith the flat shape of penny, I would also assume that it is difficult to pass it through the GI tract (i.e. pooping it out).  The stomach is made out of folds, which expand to accomodate food.  A penny can easily be stuck in one of those folds, and with the corrosive nature of zinc chloride, stick itself to the walls of the stomach, burning away.\n\nAll in all... if you or a child swallows one, it doesn't pass through in a day or so, and it hurts...  it's probably time to go to the hospital.