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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Substance that do not allow someone to fall sleep [duplicate]

I need to create a substance that do not allow someone to fall sleep, however this substance must be the most science-based as possible. The physical state of the substance is not a condition, but I ...
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1answer
55 views

Atmospheric isopropyl alcohol

Could a measurable amount of isopropyl alcohol occur naturally in an otherwise reasonably earth-like atmosphere? And if so, what is the highest possible concentration that a human could survive long-...
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Could I build a nuclear reactor based on Bernoulli's principle?

So I was recently inspired by the answers that I saw on this stack exchange to the following question: Feasibility of H.G. Wells' Continuously-Exploding Atomic Bombs And it occurred to me that ...
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14answers
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How to replace a fictional element to the periodic table?

From what I know about the periodic table, in order to add a new element it would have to be above the current highest element. And up there this new element would be unstable. But could I just ...
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Absorbing heat from unlikely places

Living in polar climates can be quite difficult, and staying warm can often be such an issue. But not anymore with the heat sponge! This nifty little organ draws heat from even the coldest water to ...
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8answers
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Where would space habitats get their oxygen from?

Suppose you want to build a large scale habitable structure in space or on a planet or moon without an atmosphere or any organics, and this would be a long term or permanent settlement, not a ...
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Biochemistry (mostly) Questions for Science Fiction

I'm Wyvera, a young female writer. I've been working on a science fiction project for more than a year now. This project, which I will eventually turn into a novel series, is supposed to remain as ...
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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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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
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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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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
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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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145 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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1answer
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Dinitrogen monoxide as a gaseous oxidizer for life

Could alien life use nitrous oxide, N2O, as its oxidizing gas, like oxygen on earth? What biochemical reactions would be needed to produce and utilise this gas? I've also heard conflicting messages, ...
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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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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
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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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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
109 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
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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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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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3answers
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Would people still be able to create firearms, machines and rockets as compact as modern-day firearms in a high-oxygen environment?

So me and my buddy are currently working on a story that takes place on a different earth-like planet similar to when dinosaurs like Brachiosaurus inhabit the landscape. A few differences is that the '...
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How can an environmentally conscious dragon avoid uneccesary damage when using his acidic breath?

So, I decided to up the ante with dragons and make them much more destructive by giving the aqua regia as the breath weapon. The problem is that the dragon in this story is a sweet and cheeky kid, ...
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1answer
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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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292 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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How would chemosynthesis using ammonia(NH3) work?

On a terrestrial planet with a high amount of ammonia vapor in the atmosphere, would any organism have a strong enough incentive to develop some form of autotrophic chemosynthesis that derives energy ...
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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 ...
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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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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
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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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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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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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The Properties of Flaming Fire Magic

Magical fire is often depicted as flames. To get fire and flames the right mixture of oxygen, fuel and heat is needed. Assuming that the magic only provides the heat, there are only two chemical ...
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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
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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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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 ...
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1answer
507 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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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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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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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
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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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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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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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186 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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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 ...
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What could a self-sustaining lunar colony slowly lose that would ultimately prove fatal?

I've got a lunar colony that was set up to be self-sustaining before a collapse of life on Earth. The colony has survived on its own for several thousand years through a period of technological ...
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1answer
80 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
121 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
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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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