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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.
4
votes
Accepted
What is the maximum pressure that JB Weld can withstand?
This is only a partial answer, addressing the maximum pressure a JB weld can withstand. I am still thinking about the reason for the strength so I will leave it to the 'real' chemists among you for no …
3
votes
How to achieve clean dishes and glasses?
I am not that familiar with cleaning procedures, but the 'rule' to support a uniform film of water without droplets seems to be an easy proxy for checking whether there are still contaminated spots on …
5
votes
Hanging a spoon on the face
I would say the answer on this website is pretty near perfect.
To summarize, you need 2 things:
Enough friction between your nose and the spoon
The center of mass of the spoon should be on a line v …
2
votes
Accepted
Chemical reasons for choosing Salt Water or Chlorinated pool?
A salt water pool still has hypochlorous acid $(\ce{HOCl})$ as the active component so essentially it CAN be the same thing as a chlorinated pool. For a chlorinated pool the $\ce{HOCl}$ is directly ad …
1
vote
Chemical Formulas of Acids and Bases
I'm going to assume you are in high school, thus talking about Brønsted acids/bases.
A Brønsted acid is a compound that can donate a proton $\ce{H^+}$ whereas the base can accept a proton. For some c …
18
votes
Accepted
Does water have a smell?
Water in its pure form, i.e. $\ce{H2O}$ does not have a smell, or at least no smell that we can distinguish because the receptors in our nose (and mouth) are continuously exposed to it.
What you smel …
107
votes
Accepted
Is toothpaste solid or liquid?
Toothpaste is what is called a non-newtonian fluid, more specifically toothpaste is a Bingham plastic. This means that the viscosity of the fluid is linearly dependent on the shear stress, but with a …
8
votes
Accepted
Why does heat solidify cake batter?
It is caused by physical and chemical reactions in the cake batter of two types:
1) When heated and mixed with water, starches present in the flour will undergo a process called gelatinization in whi …