Chemistry
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AChem
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All Questions Answers
Score Newest
answer
48
Which "exotic salt" can lower water's freezing point by 70 °C?
May 5, 2019
answer
29
Is "Sulfuric acid... makes a poor electrolyte... very little of it will dissociate into ions" really true? What does that actually mean?
Jun 17, 2021
answer
27
Why does hydrogen burn with a pale blue flame while its emission spectral lines are red in colour?
Apr 11, 2021
answer
26
Why is solubility often listed as a chemical property? Isn't the action of dissolving just a physical change?
Apr 9, 2020
answer
23
Commercial chalk for kids composition
Apr 27, 2020
answer
22
True or false: "A used AA battery contains fewer moles of electrons than a new AA battery."
Nov 26, 2021
answer
21
What is the difference between "vapour" and "gas"?
Apr 19, 2021
answer
21
Why does the graph of the electrical conductivity of sulfuric acid/water solutions have this knee in the ~85%-~92% range?
Jun 19, 2021
answer
19
What is the mathematical meaning of the plus sign (+) in chemical reaction equations?
Mar 11, 2021
answer
19
Is an acid a salt or not?
Jul 11, 2019
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Is habitual down voting considered okay?
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30
What does it mean by "d-ism of Leibniz" and "dotage of Newton" in simple English?
22
What type of abrasive grit was used to grind lenses for telescopes?
20
Origin of the term "sinc" function
17
What is the origin of the rubber sheet analogy?
16
Verb "geeitet" in an old scientific text

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