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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 …

  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 $\ce {C=C=C}$ must be linear, in 1 line. They can be bent a …

  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 …

  4. Why is OH- so electrically conductive? - Chemistry Stack Exchange

    Jan 10, 2025 · In high school (or mine, at least), we're taught that H+ ions are very conductive, due to their small molar mass, and by Newton's 2nd Law, higher acceleration, making them …

  5. Why does the Co³⁺/Co²⁺ couple have such a high reduction …

    Mar 16, 2019 · @AbhigyanC no, that cannot explain anything. If anything, the large CFSE of Co (3+) should lower the reduction potential (as it stabilises the oxidised form). Anyway, as …

  6. Hybridisation of Tetraammine copper (II) sulphate

    Apr 22, 2025 · While studying coordination compounds from my high school textbook I noticed an irregularity in the hybridisation of the above mentioned compound, because it is said to be …

  7. Why does liquid water form when we exhale on a mirror?

    Mar 11, 2019 · In the descriptions below, I always assume external pressure to be constant at 1 atm, the condition where daily observations are made. 1) When I exhale on a mirror, liquid …

  8. Does dilithium exist? - Chemistry Stack Exchange

    Apr 25, 2019 · The dilithium dimer exists- but it isn’t particularly common, and we usually only see it in the gas phase. Essentially, the 2s electrons interact and form a bonding orbital. (s-p …

  9. pH electrode with poor calibration slope - Chemistry Stack Exchange

    Jan 14, 2025 · I am currently working with two pH electrodes in my lab, and I’ve noticed they are not performing well between pH 7 and 10. Upon further investigation, I found that the issue …

  10. organic chemistry - What is a suitable process to eliminate an …

    Apr 7, 2023 · I have a reaction in which pyridin is used as a reagent in excess. The resulting product is water soluble and an anion. Pyridinium there will act as a counter ion. Normally, …