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  1. Why does my sea salt have a best by date? [duplicate]

    Apr 3, 2022 · @Farooq: As the link in this answer shows, culinary “sea salt” certainly can contain anti-caking agents. And as the answer explains, the (potential very slight) deterioration that justifies the …

  2. Why is a C4 ring impossible? - Chemistry Stack Exchange

    Mar 20, 2023 · A four C ring does exist in many compounds, but it is not possible for double bonds. Cumulated double bonds C=C=C C = C = C must be linear, in 1 line. They can be bent a little, but it …

  3. When does "always add acid" not apply? [duplicate]

    Oct 16, 2023 · I've been taught a LONG time ago to AAA "Always Add Acid". I've recently come across what feels like an exception to that rule when making piranha solution (you add the …

  4. What are the maximum number of electrons in each shell?

    Feb 20, 2014 · The first shell can carry up to two electrons, the second shell can carry up to eight electrons. The third shell can carry up 18 electrons, but it is more stable by carrying only eight …

  5. enthalpy - How is the reason for “why neutralizing weack acids with ...

    Mar 30, 2023 · How is the reason for “why neutralizing weack acids with strong bases gives less heat” that the heat is used in ionizing the acid?

  6. organic chemistry - Comparing stability of carbon free radicals ...

    Feb 11, 2025 · The following question was asked in a JEE Adv paper a few years back: Arrange the following carbon free radicals in decreasing order of their stability I solved the order of their stability …

  7. Sign of ∆S in conversion of diamond to graphite

    Oct 16, 2023 · It is said that ∆S is positive as randomness is increasing from diamond to graphite as in diamond molecules are tightly packed together but we know that ∆S=∆H/T for phase transition and …

  8. Why does Mg2+ have the ionic radii bigger than Ca2+

    Feb 16, 2015 · as shown in the above pic Mg2+has more smaller size then Ca2+... I'm sorry but your question is wrong, Why Ca2+ has bigger Ionic Radii then Mg2+? because No of Shells increases …

  9. Stability comparison of europium(II) and ytterbium(II) ions

    Jul 3, 2022 · “Which one of the lanthanoids given below are most stable in divalent form?” This question was asked in JEE Main 2022 (Indian entrance test for engineering). Now the question had both …

  10. What is laboratory air? - Chemistry Stack Exchange

    Dec 1, 2023 · Oftentimes in the literature, particularly for oxidation studies, the authors mention that experiments were performed in "laboratory air." Is there any distinction from laboratory air …