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Results tagged with everyday-chemistry
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user 33991
Applications of chemistry to reagents, reactions and processes of everyday life. Use this tag for question on chemistry in an out-of-laboratory/class context. DO NOT use this tag merely because the question is about simple chemistry.
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How do I sterilize an obsidian blade without damaging it?
I recently came across this article on the use of obsidian scalpels in surgery: How Stone Age blades are still cutting it in modern surgery
Now these scalpels are pretty fragile, with some of them …
- 18.8k
59
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4
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Why do shampoo ingredient labels feature the term "Aqua"?
I keep seeing the term "Aqua" in the ingredient labels on several shampoo varieties, but I really don't see why it should be there in the first place.
I mean, if the manufacturers just wanted to …
- 18.8k
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What gives milk its characteristic white color?
The other day, my kid brother asked me this:
What pigment gives milk a white color?
Now, I found that particular question quite interesting since, as a student of Biology, I already had a rough …
- 18.8k
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What makes wrinkle-free cotton, wrinkle-free?
Disclaimer:
No, I don't own any "wrinkle-free" articles of clothing. So I haven't been able to observe first-hand if "wrinkle-free" clothing is totally "wrinkle- free" (if it isn't, then perhaps "wri …
- 18.8k
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1
answer
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What makes scorpions glow under UV light?
What substance (or class of substances) is responsible for the neon blue-colored fluorescence we observe when we shine UV light on scorpions?
Do note, I want to know what substance makes them glow …
- 18.8k
4
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1
answer
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What is the composition of the oil-like fluid that seeps out of dry-cells over time?
An experience a lot of us might've had; a dry cell (not completely depleted) when left in an electrical device for long periods of time, has this viscous fluid coming out that usually corrodes the ter …
- 18.8k
77
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6
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Why would breathing pure oxygen be a bad idea?
My textbook mentions that SCUBA tanks often contain a mixture of oxygen and nitrogen along with a little helium which serves as a diluent.
Now as I remember it, divers take care not to surface too q …
- 18.8k
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Why doesn't frozen sugar solution taste sweet?
I'll try to make this as brief as possible:
Dissolved two teaspoons of table sugar (sucrose) in about 250ml water. Sipped it, and as expected it tasted sweet. I let the rest of it sit in the freezer …
- 18.8k
4
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1
answer
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Using baking soda paste (alkaline) to "neutralize" honeybee venom (acidic). Is this scientif...
I recall reading (courtesy: my 9th grade Chemistry text-book, chapter Acids, Bases and Salts), something along the lines of:
Bee venom is acidic. This is why the area of skin (stung by a bee) is t …
- 18.8k
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Can drinking a lot of water be fatal?
I vaguely recall having heard that drinking too much water can, over time, prove fatal to the human body.
Nothing special about the water; not distilled or de-ionized or anything … just plain ol' wat …
- 18.8k
15
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2
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Le Chatelier's principle: Are there any exceptions?
The way Le Chatelier's principle is presented in most introductory chemistry books (high-school) is as though it's an indisputable law of the physical world (in the sense that we're never shown an exc …
- 18.8k
2
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1
answer
8k
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Can a table salt + vinegar mixture be explosive?
I remember having read in a book, Ask Me Anything (Dorling Kindersley), that a combination of copious amounts of table salt and vinegar is explosive.
Now this was a really long while back, and I can' …
- 18.8k
16
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3
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4k
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Mercury metal: Not toxic?
Now I (and most of us here, I guess) have grown up around "Mercury's toxic! Avoid handling it! Do NOT screw around with this thing, if you value your life" and other equally heartening pieces of advic …
- 18.8k
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How 'heavy' should an element be, to be a "Heavy Metal"?
I've come across the term "Heavy metals" innumerable times in articles, mostly pertaining to environmental issues.
Is there a weight range (of sorts) against which an element (metal) is classified as …
- 18.8k
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What gives fresh milk a yellow tinge?
Every now and then, when I pop over to my grandparents' house, they make sure to give me a glass (or two) full of fresh milk (or "whole milk" if you will) and then proceed to pamper me for the rest of …
- 18.8k