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Results tagged with everyday-chemistry
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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.
1
vote
Accepted
What would make tracing paper clear?
I can tell you how to find something that will make tracing paper transparent, but I don't have an example to hand.
Tracing paper is partially opaque because it is "rough" and contains many small fib …
- 37.8k
10
votes
Accepted
What happens to gasoline when it lands on your hand?
It evaporates, but it will first take some hydrocarbon compounds in your skin
Gasoline is a mixture of a variety of volatile hydrocarbons, some branched chain alkanes and some aromatics. The warmth o …
- 37.8k
5
votes
Accepted
Why do tealights burn violently when nearly burnt out
There are two factors that probably matter here. One is that, for most of the life of the tea light, only a small amount of wax is liquid and actually burning. Most of the flame is liquid wax burning …
- 37.8k
3
votes
Is it 'Phenyl' or 'Phenol' that is used as a cleaning agent?
The big corporation may not have got it wrong, but they used a confusing brand name.
In chemistry, phenyl is a name (sometimes abbreviated to Ph in formulae) for part of a chemical not a whole substa …
- 37.8k
4
votes
222nm HARMLESS UV lamp for protecting from virus covid-19
UVC is very harmful to people and requires specialist equipment to create and use safely
You are not going to be able to create or use lamps that emit 222nM light without specialist equipment, and ev …
- 37.8k
7
votes
What type of acid is found in tea?
Some of the major components of tea are polyphenols. They are fairly acidic and may dominate the pH of tea.
For some examples of the types of polyphenol that are common see this site on tea chemistry …
- 37.8k
3
votes
Accepted
Why does road salt reveal this bus's frame?
No. the best two explanations don't need any chemistry at all.
If you look closely at the panelling on a bus like this you will find that there is physical evidence on the outer skin about where the …
- 37.8k
8
votes
Distilled water to clean greasy stains: Why does that work?
There may be two different factors at play here.
First, it isn't necessarily the water that is doing most of the cleaning. I presume the water is used to wet a cloth and the cloth then wipes the surf …
- 37.8k
1
vote
Is identifying a chemical equivalent to be able to produce it?
There is really more than one question here: one is whether identifying a chemical requires the ability to make it; the other is whether the UK can reliably identify Russia as the manufacturer of the …
- 37.8k
2
votes
Accepted
How heat makes raw food become eatable?
A great deal of food consists of mixtures of long-chain carbohydrates (starchy stuff) and proteins. Some of these things are hard for the human digestive system to process (try getting any calorific v …
- 37.8k
21
votes
Accepted
Does a smell imply particles or chemicals in the air?
Smell works because your nose detects substances in the air.
Everything you can smell is the result of a molecule carried by air interacting with complex proteins in the nose/mouth (smell and taste a …
- 37.8k
6
votes
Examples of non-volatile, but flammable liquids?
combustibility and volatility are unrelated
Whether things burn or not (i.e. whether they are flammable) is unrelated to whether they are volatile. Volatility only determines whether things are easy …
- 37.8k
1
vote
When I dissolve sugar in my cup of tea/coffee, does it become a liquid?
Sugar added to tea becomes a solution not a liquid
Sugar is very soluble in water. When you add the solid to the tea the key process is that the solid sugar dissolves in the warm liquid: the solid cr …
- 37.8k
3
votes
Can we tell if a compound is explosive by just looking at its chemical structure?
Being explosive is ill defined as context matters
Part of the issue with what is explosive is the context of the situation where the substance explodes. Flour (the sort used for making bread) is not n …
- 37.8k
8
votes
Accepted
Is there a flame which doesn't produce smoke?
Yes there are flames that don't produce smoke, but the reasons are complicated and depend on the conditions of the flame as well as the key fuel creating the flame.
The obvious example of a smokeless …
- 37.8k