What are possible health complications from eating burnt food?
Burnt/charred material on the outside of food is a chemically complex of compounds made in the process of "burning" something. Because of the nature of the process of cooking-where high energy and local dehydration occur, some compounds that form will be carcinogens. Carcinogens are chemicals that when eaten do some damage to DNA in the cells of your body.Depending on the food and how burnt the food is, amount of carcinogen will vary.Whether cancer results is probabilistic and depends on carcinogen load. Hypothetically eating more burnt food will increase your risk, but the amount by which your risk increases is much less well characterized than say exposure to X-rays or nuclear radiation.Charred foods, especially meat, contain benzo(a)pyrene, which is highly carcinogenic. But the concentration is relatively low in foods cooked this way. So yes, charred food is carcinogenic, but when we're talking this level of concentration so are a lot of other things in everyday life. The smell of cooked bacon and new furniture (formaldehyde), for example.Diets with high exposures to HCAs( heterocyclic amines ) are correlated with higher rates of cancers of the pancreas, colon and digestive tract.HCAs can directly damage your DNA, initiating cancer. The highest levels of HCAs are found in grilled poultry, steaks, salmon grilled with the skin, well-done hamburgers and barbecued pork such as spare ribs.And when the fat drips onto the coals and there is a flare, polycyclic aromatic hydrocarbons (PAHs), another family that may contain carcinogens. are formed. The smoke carries these hydrocarbons and coat the food we eat. PAHs also form with charring. Exposure to PAHs are correlated with increased rates of stomach cancer.Therefore NO TOO MUCH OF BURNT FOOD ESPECIALLY BARBECUE !
Green living-burning green wood?
"Green" wood is wood that has not dried out. Not only is there more water through out the tissues but also the sap is still "wet". In some areas, "green" wood is wood that is simply not seasoned or dried. In others "green" wood refers more to saplings and newer branches that have more sap than the older wood tissues. Different tree saps have been used in glues and paints/coatings. I don't know if the chemistry of the sap changes as it dries out from "sap" to "resin". Certainly green leaves, even dried leaves, wet wood, and wet sap burns at a lower temperature, don't burn as completely, and produce more smoke. They also leave more tar and residue on/along a chimney than does seasoned, dried wood. Seasoned, dried wood burns more completely and in doing so, releases fewer, partially burned particles into the air. In general, smoke is carcinogenic and the more particulate matter in the smoke, the more number of different carcinogens. What I don't know is whether or not there are some chemical changes to the sap and the wood as they dry that also make wet wood more or less carcinogenic. Further, common sense tells us that not all trees are a like and thus, not all have the same wood structures nor sap in terms of chemical composition. Add to that a little bit of gardening ot tree knowledge and we know that some trees have stickier sap than others, some trees give off chemicals that inhibit under growth or competition, and more. I would guess that not all trees carry with them the same carcinogenic risk as others. Oh, yes - I would assume that the carcinogenic risk of the burning of wood is probably best understood among human populations as opposed to wild life populations. But, also the burning of vehicle fuel is carcinogenic. We addressed the burning of lead, with its lead poisoning and carcinogenic issues, by converting to lead-free fuel. As we work on vehicle emissions, mass transportation, alternative fuels, increased fuel mileage, and alternative means of transportation, we will also be reducing our exposure to known human carcinogens. In terms of air quality, often what is good for the "environment" is also directly good for humans too.
Why when wood burns the ash weighs less than the original wood did?
Think about what goes in and what comes out. What reaction is occurring when you burn something? Combustion. You take long carbon chains, you add oxygen and heat, and it burns. Then you produce carbon dioxide, carbon ash, some methane and a bit of water. All you've done is rearrange where all the atoms are - instead of being in the long carbon chains, some of the carbon is now in the form of carbon dioxide... what happens to this carbon? I think you'll find this is where most of the missing mass goes.
What creates/gives off a lot of smoke when on fire/lit?
The question pretty much says it all... I know that ping pong balls give of some smoke, but i don't have the money to go around and buy ping pong balls to just watch some smoke come out of them. So what are a couple other things that are cheap and create a lot of smoke?
A strip of Mg burns in air, the mass of resulting residue is greater. explain in terms of conservation of mass
here is the full question [more space to type here]: When a strip of magnesium metal burns in air, the mass of the resulting residue is greater than the mass of the original strip of metal. Explain this observation in terms of conservation of mass.
What did your parents do when they caught you smoking weed?
Haha okay this still makes me laugh!I'd been smoking weed since I was around 11. I was about 13 and while I was looking for sand paper for a school project, I stumbled across a random seemingly empty coffee can. Curious, I peaked inside and found a rolled up sandwhich bag with green stuff in it. I unrolled it to check out it's contents and found an 8th of weed! I was so excited because at the time I didn't have any. So I dipped in and took a good size nug and put it back before I got caught!!I continued to randomly take some here and there. Making sure I didn't take a noticeable amount, and rolled it up how I thought it was. I did this for a few months, thinking how sneaky and awesome it was…Well one day I ran out so I want into the garage as usual to dip into my parents stash can. But this time, the lid had in black bold sharpie: “Gotcha!!!” and the coffee can was completely empty. I was so scared, I want out the side door and went for a very long walk to think of what excuses I could give them. Nothing was really going to work. So I get back home an hour or 2 later, hoping things would just be left unsaid. NOPE. Haha they were in the living room waiting. My heart was racing, my mind about to explode thinking of my punishment. Starting blushing and sweating. Finally after what seemed like hours of silent parents staring me down, they finally said:“we always roll the bag up differently everyday so we figured you were taking some when the roll wasn't right… you need to ASK us next time. Can't stop you obviously from smoking, so instead of STEALING it from us just ask please.”I sighed a huge breath of relief. “Yes! I'm off the hook!” I thought.“Oh Megann, by the way, your also grounded for 3 months… “Damn… haha almost! They couldn't have been more mellow and nice about it. Surprised the hell out of me that's for sure! They could've done locked me up and thrown away the key for WAY longer then what I got, so that was pretty cool.The same scenario played out almost exactly the same when I got caught stealing their cigarettes too. Haha after I got a job at 16 my mom agreed to just buy me my own pack as long as I payed for them myself.
What is the stuff they burn for incense in the catholic church?
Catholic incense is a granulated aromatic resin, obtained from certain trees in Eastern and tropical countries, especially from those of the terebinth family. When sprinkled upon a glowing coal in the "censer", it burns freely and emits an abundant white smoke of very fragrant odor. Various spices are sometimes mixed with the resin to increase its fragrance. For more information, see: http://www.newadvent.org/cathen/07716a.h... and http://landru.i-link-2.net/shnyves/incen... With love in Christ.