Questions tagged [chemistry]

For questions that have to do with chemistry, chemical reactions be they biological or artificial, or the industrial processes of chemistry.

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5
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4answers
333 views

Would naturally occuring room temperature superconductors affect a planet?

Say we have a planet, similar to Earth, which has deposits of a naturally occuring superconductor. Perhaps have it about as common as deposits of gold - Moderately rare, but occurs in veins as opposed ...
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2answers
148 views

Could life generate twice on a planet using slightly different materials?

Extremely low possibility, but if life synthesizes from scratch after life has existed on a planet for a few million years, would the two separate lineages be able to co-exist?
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3answers
252 views

What would a darkness effect capable of blocking all electromagnetic radiation probably do?

(As of 2020, February, the 19th, 12:23, I have decided to use a different method than the one originally proposed. The method itself answers the question) Imagine a spell an effect of utterdarkness. ...
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2answers
157 views

What kind of evolutionary pressure might lead to plants that send out a tight beam of ionizing radiation

While pondering "Can radioactive moon affect life on a planet?", I got to wondering about plants that send out a tight beam of ionizing radiation. What kind of evolutionary pressure might lead to such ...
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1answer
126 views

Reality check- atmospheric percentages, gravity, mass, and pressure [closed]

What would changing these qualities do to an earth-like world? Would humans and other earth-like life be able to survive, and what effects would this have on them? And what modifications would need to ...
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1answer
259 views

The chemical and nuclear science behind pyromancy

For quiet sometime now I’ve been stuck on one of the finer details of my world building. Namely that one of my characters is this world’s version of a pyromancer that, through the use of both the ...
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3answers
351 views

How long or how hard is it to develop a medieval fantasy into a modern or even sci-fi civilization.?

Our universe dies due to entropy, so what do humans do best??? COLONIZE! A near sentient AI found a way to cross realities and because our universe was dead, everyone took the chance. They (about ...
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4answers
520 views

Sword that is limp when in sheath, and hard when drawn?

I want to create a sword that when sheathed remains limp/flexible or soft but upon being unsheathed it become hard like common steel. So, something like the sword going soft when not exposed to ...
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2answers
131 views

Carbon Monoxide Rich Atmosphere

I want to make an atmosphere rich in carbon monoxide, but as it doesn't stick around for very long, it will need to be replenished. I'm looking for concentrations comparable to those of carbon dioxide ...
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0answers
67 views

What would a planet with a notably high sulfur content but otherwise Earthlike composition be like? [closed]

I'm currently working on making a planet with mostly Earthlike chemistry, but I want to throw something into the mix to make it distinctly different from Earth and most likely uninhabitable to ...
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1answer
156 views

If a human body were to break down into simple gasses of its component elements as a means of shapeshifting how much solid matter would be left? [closed]

The setting I am working with has several individuals with shapeshifting powers. To deal with the inevitable “shapeshifters seem to violate conservation of mass while shapeshifting” issue, the rules ...
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1answer
221 views

Options to keep someone awake against their will? [closed]

I already asked this on Medicine SE and Chemistry SE, but both said this question is dangerous and they can't answer it, and on Chemistry I got a suggestion to ask this here again. It is for a RPG ...
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3answers
179 views

What is a realistic outcome of what will happen to the body if all the flammable materials in the gut spontaneously ignite?

I am writing a story where a person suffers from a medical condition where the gut produces too much of a liquid called diphosphane. Diphosphane is pyrophoric past a certain small concentration, and ...
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1answer
145 views

How would a creature like this work?

This lifeform is a carbon based humanoid that uses ammonia instead of water, breathes chlorine gas, and its body uses the mineral olivine to toughen its skin. Its blood is blue; apparently an ammonia-...
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3answers
327 views

Preindustrial Poison Gas?

Chemical weapons in the form of poisoned arrows have existed since the Stone Age, but gaseous chemical weapons weren’t utilized until WWI. The hideous scourges of Phosgene and Mustard gas required a ...
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6answers
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The students have blown up the school using stuff that looks like snow. How?

In Hungarian, there is a new-ish folk-song sung by school-children who dislike school whenever it snows to the tune of Twinkle, twinkle, little star: Hull a pelyhes dinamit, Robbantsuk fel a sulit! ...
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7answers
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Good explanation for why aliens can't build nuclear engines?

"Aliens used uranium and plutonium to generate energy for thousands of years. However, by the time they got into space exploration, they've used up every last bit of it. That's why they'll have to try ...
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2answers
4k views

A character steps outside in the upper atmosphere of Venus- how sunburned is he?

For complicated reasons our hero's blimp in the Venus atmosphere at an altitude of 50 km gets a tear in it and sunlight floods inside (there is no gondola, the blimp is a semi-ellipsoid of breathable ...
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5answers
313 views

What improvements in the human body will allow it to withstand critically low or high pressure?

My question: What is it that needs to be improved or added to the human body so that it can withstand critically (fatally) low and high (if, my genetically modified person is underwater or a very ...
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5answers
1k views

Is there dense, non flammable gas that I can cover the Earth in?

This question is related to Deadly, Heavier than Air Gas, and Is a world with two different types of air possible? but has several different criteria. I've also looked at https://chemistry....
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13answers
5k views

Substance that changes quickly from liquid/gelatinous to solid?

Question: does a liquid or gelatinous substance exist that once outside a body could solidify and be hard enough to be used once as a tool? The setting is low fantasy without magic, yet with ...
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8answers
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Blue soil (aka dirt) in an earth-like planet?

How could blue soil exist, in a realistic earth-like world. The world may even be earth. First off is it even possible - could soil like this exist given the requirements below? (if not then why?) ...
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0answers
45 views

Alternative Ozone Layer [duplicate]

The reason for the high level of Oxygen in the atmosphere today is due to the billions of years worth of photosynthetic prokaryotes releasing it as a waste product. Of course, in the higher levels of ...
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3answers
1k views

How far can technology on a planet made of just hydrogen, carbon, and oxygen be developed? [closed]

The planet only has three elements to work with: hydrogen, carbon, and oxygen. Organic life forms also exist on the planet. They have no access to other elements. Given (based on) our organic ...
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4answers
406 views

Alcohol-based organisms?

Would it be possible to have an organism to be based on alcohol, rather than water? Complexity does not matter, but a complex organism would be favourable. their environment would be in oceans of ...
23
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1answer
628 views

Plausibility of helium dominated atmospheres on super-Earths

I've been using this helpful diagram a lot for worldbuilding. Now I came to think about the fact that helium is more massive than hydrogen, thus a scenario where hydrogen escapes, but helium is ...
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3answers
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Eating Titan's oceans

Imagine a Mark Wattney-like scenario, only on Titan and involving a decent-sized base being isolated instead of a single person. There is not, and never has been, the possibility of growing potatoes. ...
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2answers
308 views

How to make a microbe that can eat metal and breathe hydrogen?

I made an organism called the Skarlix for a art/xenobiology project called Sagan 4. The Skarlix is a eukaryotic, somewhat amoeba-like organism that "eats" various metal compounds and "breathes" (...
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15answers
6k views

Is there a material or method to allow "swimmable" coins?

I want to know whether there is a way to make coins that are "swimmable" in the fashion of Scrooge McDuck. My inquiry is based off this Family Guy meme from Pinterest The coins don't necessarily ...
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1answer
191 views

How can I achieve the results of Pompeii with divine energy?

Gods occasionally visit the mortal realm for particular reasons, such as certain festivals or to do battle against demonic forces in an invasion. In the case of the latter, a god has to be careful ...
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4answers
127 views

How to transform a cells energy source into explosives

I'm basically searching for an ATP that can be used to supply cells and also have its energy extracted efficiently into a basic form of explosive material (the stronger the better) without a lot of ...
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2answers
227 views

is there a way to make water armor and condense the water?

i want to make an armor made of liquid, for example like dew accumulate and attached to the person or just dip into water and the water attached/carried on (just example), but it also condense the ...
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2answers
235 views

Recreating dragon fire

In Anne McCaffrey’s series 'The Dragonriders of Pern', she describes her dragons chewing on rocks containing phosphine — a chemical made of one phosphorus atom and three hydrogen atoms. In gas form, ...
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0answers
173 views

What would seas of non-water liquids be like? [closed]

First off, is a sea of a non-water liquid even plausibly likely to occur on a given exoplanet? Secondly, what non-water liquids would be most likely to form into large bodies? How would those liquids ...
3
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1answer
84 views

Can I improve internal combustion engine efficiency by slightly changing vacuum permittivity?

Energy released in an exothermic reaction depends on bond energies of reactants and products. Since molecular bonds are electric in nature, at the first glance, increasing Coulomb's force should ...
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1answer
389 views

what essential material or ingredients in modern gunpowder that if changed to be expensive or rare, can ruin the evolution of advance/modern gun?

as the title, what materials or ingredients in modern gunpowder that if change to be expensive or rare to get, can ruin the evolution of advance gun or can turn modern gun obsolete or undesirable ? i ...
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2answers
323 views

Is there a scientific way to make a metal that can pass through other metals?

I want to create a sword that can pass through an opponent's weapon/armor (mostly made of metal like steel/iron, bronze, copper, lead, silver, gold, etc) like it was ethereal or hologram thing upon ...
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2answers
139 views

what would it need to create indestructible bubble?

Not exactly indestructible, at least after flying to certain height it may pop out. I mean something like the bubble is as hard as stone or steel but still elastic and light to float like bubble, and ...
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3answers
188 views

What planet composition is need to have giant human that make earth human similar in comparison to ant size to them?

as the title say my question is: What planet composition is need to have giant human that make earth human similar in comparison to ant size to them? i know realistically and probably its imposible ...
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2answers
506 views

How would oceans of supercritical CO2 on Venus-like exoplanets look like/behave?

Carbon dioxide turns supercritical above a pressure of 73 atm and 304.25 K (31.10 °C). The surface of Venus fullfils these conditions. The density of the air at the surface is 67 kg/m3, which is 6....
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3answers
353 views

How could formamide lakes form on an exoplanet?

I've been recently looking into alternative biochemistries for life and the environments were these could be found. I already asked a question about how ammonia oceans might form a while back. Today I'...
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1answer
147 views

Could life arise using iron pentacarbonyl as a solvant?

Iron planets are planets which lack a significant mantle. These planets are essentially lone planetary cores. Since water and iron are unstable together iron pentacarbonyl and other exotic metal-based ...
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3answers
1k views

Burning to increase mass? [closed]

I just saw a post that suggested that 1 gallon of gas (6.3 lb) burned through a combustion engine generates 20+ lbs of CO2. I am sure they just missed a decimal or did not remember correctly what they ...
5
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4answers
425 views

Making freezer arrows using endothermic reactions

Fire arrows are a pretty common trope, however, according to Lindybeige, they're not really that great. In contrast to fire, what if you make arrows that create an endothermic reaction upon impact, ...
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5answers
4k views

Doing chemistry under water?

Aquatic races are usually assumed to be stunted in technological development by the inability to create fire or forge metals. But what about doing chemistry at all? The development of chemistry in ...
5
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1answer
107 views

Life-supporting climate for an organolithium planetary environment?

I'm looking to design one of my warring planets around organolithium chemistry with seas and precipitate primarily composed of a clear organolithium solvent liquid - possibly ammonia. I've searched ...
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5answers
205 views

The Itsy-Bitsy Insect Has Made a Web. How Differently Would it Look From Spider Web?

In an alternate Earth, a mass extinction wiped out a percentage of the most successful phylum ever--Arthropoda. All that survived of the class Arachnida were the really small varieties--the ticks, ...
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8answers
8k views

What elements would be created in a star composed entirely of gold?

I'm working with the idea of creating a sun made out of pure gold. Of course, this would be completely man-made. Why would anyone want to do this? Because I want a cool concept like that in my story! :...
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7answers
3k views

Plausability of combustion light-gas guns replacing conventional guns in the future?

My scifi settings armory is filling up with many interesting weapons. However, while energy weapons, Gyrojets, Tangler guns and the like outperform slugthrowers in special applications, concentional ...
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7answers
2k views

How can Bronze Age people make hazmat gear for chlorine trifluoride?

How can Bronze Age people make hazmat gear for chlorine trifluoride? The ClF₃ is produced biologically, just as fruits produce acid or capsaicin. This alternate world just happens to have bacteria — ...

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