Why is Potassium in French and English not called Kalium? (with thanks to @NilayGhosh, who provided the key source for much of this answer) Short answer: Potassium was called Potassium (and Sodium Sodium) by Humphry Davy, who first isolated both; it was then renamed Kalium in Germanic countries because of a previous naming proposal by Klaproth, who was the first to show that potassium carbonate and sodium carbonate were different
Why do the names of most chemical elements end with -um or -ium? The names sodium and potassium were changed to natrium and kalium All metallic elements discovered after this date ($1811$) have been given names ending in -ium (occasionally -um) Examples are cadmium, lanthanum, lithium, thallium, radium This is also why helium has the suffix The name helium is anomalous
How to dissolve chalk (CaCO3)? - Chemistry Stack Exchange $\ce{CaCO3}$ is sedimenting when mixed with water, and therefore is not easy to remove with hot water Nevertheless several methods exist that actually dissolve it that are better
Reaction of potassium with water - Chemistry Stack Exchange In general, when we put potassium into water, it will produce potassium hydroxide and hydrogen: $\\ce{2K + 2H2O 2KOH + H2}$ However isn't the following reaction also possible? $\\ce{2K + H2O K2O
How does pH affect the rate that CaCO3 dissolves in freshwater? It is my understanding that calcium carbonate dissolves faster in lower pH environments I am interested to know how higher PH levels affect the rate of dissolution So I have broken this question
Wavelengths of colors emitted by alkali metals during flame test While reading my NCERT chemistry book (Page number 300), I came across a table that mentions colors emitted by alkali metals and corresponding wavelengths It mentions that Potassium emits a violet
physical chemistry - How does ammonium nitrate explode on its own . . . It is known that ammonium nitrate decompose exothermically when heated to form nitrous oxide and water This paper 1 notes that the irreversible decomposition of ammonium nitrate occurs at the temperature range of $\pu{230-260 ^\circ C}$
Sublimation of Iodine - Chemistry Stack Exchange Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers