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Questions tagged [chemistry]

The science of matter and the changes it can undergo.

5
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1answer
756 views

Does detergent help clean clothes in washing machines?

The Telegraph reported in 2008 that British historian Ruth Goodman: stopped using soap in her washing machine and says the clothes come out just as clean. "We're all victims of 150 years of hype ...
10
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3answers
9k views

Does elemental mercury give off toxic vapor?

This video claims to show mercury giving off a steady stream of toxic vapor when viewed with a UV light. http://www.youtube.com/watch?v=JABbofwD3MI There is also a Reddit discussion about this video....
5
votes
1answer
710 views

Do pain killers “target” pain?

Everyday I hear advertisements that some painkiller directly targets the pain. e.g. Nurofen's UK web-site Targets pain fast. [...] Targets pain twice as fast as standard ibuprofen ...
121
votes
5answers
23k views

Do atoms exist?

There are plenty of examples of people doubting ([1], [2], [3], [4], [5]) or denying ([6], [7], [8]) the existence of atoms. Is there any compelling evidence for the existence of atoms? Has anyone ...
30
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2answers
85k views

Does baking soda remove odors?

I have always been told that an open box of baking soda will "absorb" odors and make a fridge smell less. I have even seen people with three boxes in one fridge. My question is whether there is any ...
9
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2answers
1k views

Are added nitrates and nitrites in our diet harmful?

It is widely claimed that meat-curing agents containing nitrates or nitrites are dangerous food additives. This site puts them in a top ten list of bad food and recommends avoiding cured meats, ...
6
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0answers
188 views

Does commercially-produced cotton cloth contain unhealthy chemicals that cause fertility problems?

The article Czy Twoje ubrania Cię trują? "Wchłaniamy chemię przez skórę. Stąd np. problemy z płodnością" (Do your clothes poison you? "We absorb chemicals through the skin, hence, for example, ...
30
votes
1answer
64k views

What happens when you mix Lysol and bleach?

My mother just forwarded an email to all her contacts (thanks, mom), warning us of the dangers of mixing Lysol and bleach together. Here's most the content, translated from French: Bleach and Lysol,...
2
votes
1answer
407 views

Is Plant-e an actual company stating a serious premise? [closed]

This is what I read beforehand and then I reached the company page. They state that plants produce energy. This happens when releasing stuff from the photosynthesis process, which is consumed by ...
13
votes
1answer
858 views

Are silver dental fillings safe?

Are silver tooth fillings safe for a person's health? My dentist says they are safe for my health. My general practitioner has no opinion on the matter. Some countries have banned or restricted ...
16
votes
1answer
949 views

Is Roundup weed killer carcinogenic?

Monsanto have been found liable for the terminal cancer of a former groundskeeper exposed to glyphosate and other chemicals in their Roundup herbicidal product. On Friday, a California jury hit ...
7
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2answers
592 views

Do certain fruit combinations ripen faster?

It is commonly claimed that certain fruits (e.g. apples, bananas, high-ethylene fruits and their dastardly "ripening hormone") make other fruits ripen faster. These claims appear on mainstream media ...
8
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3answers
9k views

Does skimmed milk have more added chemicals than whole milk?

I've heard that skimmed milk has more added chemicals than whole milk. Is this true?
18
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1answer
6k views

Is tomato juice useful for removing skunk smell?

It's a common belief that you should use tomato juice to remove the smell after you get sprayed by a skunk. Does it work?
28
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1answer
142k views

What is monoatomic gold?

Over the weekend I heard an acquaintance mention something called "monoatomic gold", followed by a bevy of fantastic and surprising claims about the substance, what it does, and how it was discovered. ...
8
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0answers
978 views

Do the water filters in Pure & Clear filters work?

Dr Mercola advertises Pure & Clear Filters: Pure & Clear filters use a “selective filtration” process rather than a mechanical one for a couple of very important reasons. This advanced ...
5
votes
1answer
493 views

Does fluoridation and chlorination in the US cause thyroid issues?

From an answer in Travel.SE with a net score of 10: Mains water is typically laced with chlorine and fluoride by law, to the point that you step out of the shower smelling [like] you just stepped ...
18
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1answer
32k views

Will fluoride and chlorine dissipate from tap water left to sit overnight?

One common recommendation for watering house plants with tap water is to allow the water to sit overnight before watering, so that the fluorine and chlorine that are commonly added to tap water (which ...
15
votes
1answer
9k views

Is chlorine in water absorbed quickly through the skin?

I recently saw a demonstration of a water filtration and purification system. In one of the demos two glasses were filled with tap water and then someone put three fingers into one of the glasses and ...
8
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2answers
16k views

Does Pureit Polisher remove the chlorine from chlorinated water?

This purifier claims to produce 100% pure water. They use chlorine. Chlorine, when taken in for a long period, is bad for health. The 4 stage purification process. Polisher Removes chlorine and ...
2
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0answers
1k views

Does chlorine in water harm soil bacteria?

This article claims that both chlorine, and chloramine, which are added to many municipal water supplies to kill harmful bacteria, can also harm the good bacteria in soil, necessary for a healthy ...
7
votes
0answers
469 views

Are angel food cakes cooked in tube pans because they need support?

According to Cooks Illustrated: There’s a good reason angel food and chiffon cakes are always baked in tube pans, and it’s not just aesthetics. These specialty vessels actually help delicate cakes ...
111
votes
5answers
21k views

Are 19.6 pounds of CO2 produced from burning a gallon of gasoline?

According to the U.S. Energy Information Administration, About 19.6 pounds [8.89 kg] of CO2 are produced from burning a gallon of gasoline that does not contain fuel ethanol. About 12.7 pounds [5....
11
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2answers
3k views

Does cow urine contain gold?

I stumbled upon a video of a baba (spiritual guru | Baba Ramdev) saying that cow urine contains gold. This belief is widespread in India. I looked it up and many sites saying cow urine contains gold. ...
21
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2answers
12k views

Is water calcification bad for your health?

I have a friend, who adamantly believes that water calcification causes a number of problems, including poor health. He also said it made the water taste disgusting. He had recently installed a ...
14
votes
2answers
20k views

Can you die by absorbing cyanide through the skin?

A friend of mine was talking about The Iceman, a killer that supposedly used cyanide absorbed through the skin as his murder weapon: Kuklinski favored the use of cyanide as it was quick kill poison,...
3
votes
0answers
189 views

Is there any scientific basis to this “catalytic converter” to treat hard water?

I came across this product called Softer Water Conditioners. It includes a lot of scientific sounding mumbo-jumbo to explain how it works, which raises my skepticism. Is there any scientific basis to ...
3
votes
0answers
478 views

Does Tesla's 70 kWh battery have 63 kg of lithium and if so, why? [closed]

I have found information that Tesla's 70 kWh battery pack has 63 kg of lithium: https://electrek.co/2016/11/01/breakdown-raw-materials-tesla-batteries-possible-bottleneck/ Considering there's only 13 ...
10
votes
1answer
6k views

Is Oxycontin pharmaceutical-grade heroin?

I was watching a documentary about the Oxy pipeline from Florida to Kentucky this weekend where a sheriff made the claim that Oxycontin was pharmaceutical-grade heroin. This is not the first time I ...
23
votes
3answers
8k views

Can thunderstorms curdle milk?

When I was 13, my sister and I spent the summer on a dairy farm. We worked in the creamery, where (twice a day) we bottled fresh raw milk, as well as cleaned all the equipment. It was really a fun ...
34
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4answers
6k views

Is warm water more effective than cold water for washing one's hands?

When washing my hands, I was always told to use warm soapy water. However, is there any chemical or biological reason why warm soapy water is more effective to cold soapy water when trying to ...
33
votes
2answers
7k views

Do emotionally-driven tears release toxins from the body?

Sometime ago I'd heard someone trained in child psychology claim that crying for emotional reasons (as opposed to getting something in your eye for example) released toxins from the brain and/or body. ...
8
votes
2answers
631 views

Is pouring liquor from a bottle onto a flambé an explosion risk?

Several TV chefs including, the late Julia Child, have advised against pouring liquor directly from the bottle to a pan to be ignited, as 'flames could travel up the stream and ignite the bottle' ...
8
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0answers
2k views

Does baking soda eliminate a cockroach infestation?

My questions concerns a population, more significant than simply exterminating an individual cockroach. Claim: http://pest.tips.net/T003494_Kill_Roaches_with_Baking_Soda_and_Sugar.html If you're ...
9
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2answers
4k views

Would tying sulphur to the feet of birds allow you to burn down a house?

According to legend: The last vengeance took place in the year 946 when Olga traveled around the land of the Drevlyans in order to gather tributes. She besieged the town of Iskorosten, which ...
14
votes
3answers
7k views

Man using “water as fuel” for a welding machine? (H₂O → “HHO”)?

I saw a while back a YouTube video that appears to show a news report of a man who patented technology to turn water into "HHO". The video makes some big claims — 161 km (100 mi.) on 0.1 L (4 ...
30
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2answers
32k views

Is biting a gold coin a working method to verify its authenticity?

Julia Murray & Kelsey Serwa In movies you commonly see treasure hunters, pirates, thieves, ... bite down on a gold coin to verify it's real gold. (Gold Medal winners often pose with the medal ...
33
votes
2answers
6k views

Is alcohol for consumption tested for carbon-14 radioactivity to be considered legal?

I just viewed this interesting video about radioactive ethanol from plants as opposed to non-radioactive ethanol from crude oil. In it, the professor says he's heard it's illegal in the USA to sell ...
3
votes
0answers
216 views

Are the chemical compounds BPA, BPS and BPF harmful to humans?

According to the following article by Time, and the study that it cites, several compounds of the chemical bisphenol - used in commonly-handled products like shopping receipts and plastic containers ...
3
votes
1answer
2k views

Is biochemical transmutations of elements possible?

According to a recent press conference Russian scientists have made a breakthrough so astounding it could change the universe as we know it in fundamental ways. The essence of this discovery and ...
3
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0answers
465 views

Will plant-life on Earth end due to too little CO2?

According to a 2013 Daily Mail article : greater evaporation and chemical reactions with rainwater will take away more and more carbon dioxide. In less than a billion years, its levels will ...
29
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2answers
28k views

Is margarine “one molecule away from plastic”?

I've heard the claim that "Margarine is only one molecule away from being plastic" several times. Usually from friends who think they've heard it from some reliable source. I've also read a couple ...
9
votes
1answer
5k views

Does Dimethyl Sulfoxide (DMSO) speed the healing of wounds?

My wife is currently suffering from a small ulcer which is refusing to heal and a friend of hers suggested a topical application of DMSO to improve healing time. Please not that I am explicityl not ...
11
votes
2answers
7k views

Can burning potato peels clean a chimney?

Some state, that burning dry potato skin would remove or reduce carbon black in a chimney. One can find many examples for this online: The potato peels burn at high energy and will help push the ...
7
votes
1answer
508 views

Do transparent beer bottles allow UV rays oxidise the beer faster?

According to the following Facebook post from a Beer fan page: The ultimate goal of adding a lemon to a beer is to hide beer flaws and defects. By using a transparent bottle, ultraviolet (UV) ...
3
votes
2answers
823 views

Do the vitamins in a smoothie degrade when put in the fridge?

I was discussing with a friend about my smoothies consumption and he argued that putting them in the fridge to consume them the next day was not good as the vitamin level/effect drops quickly. ...
3
votes
0answers
502 views

Is vinegar dangerous for dishwashers?

This post claims that putting vinegar in rinse aid reservoir of a dishwasher leads to damage (similar claims can be found here and here): on newer dishwashers, the rinse aid compartments have ...
5
votes
1answer
500 views

Does consuming foods rich in phytic acid prevent mineral absorption?

I've seen a lot of articles warning that consuming phytic acid can prevent the body from absorbing minerals. They recommend soaking beans, chickpeas, lentils and other phytic acid foods before cooking ...
4
votes
2answers
4k views

Make fire with a potato, salt, and toothpaste?

I saw a video recently that seemed to show a fire being started from a potato, salt, toothpaste, a couple of wires, and what appears to be cotton. A video showing this is HERE. To summarize, it looks ...
16
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2answers
2k views

Are towers being built in China that can turn smog into diamonds?

This article about a new project that builds towers that can turn smog into diamonds makes some pretty incredible claims. It claims that: Towers intended to turn carbon in the air into diamonds have ...