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Potassium and iodine have formed a bond Prior to this the potassium gave up an electron It became a?
positive ion
What color is Lugol's solution prior to changing color?
Lugol's solution is a solution of iodine (1-5%) and potassium iodide in water. So the solution should have the pale color of iodine and the color should be pale (light) brown.
Where does the name of potassium come from?
Potassium was discovered by Sir Humphrey Davy at 1807 in England. Origin of name: from the English word "potash" (pot ashes) and the Arabic word "qali" meaning alkali (the origin of the symbol K comes from the Latin word "kalium").Until the 18th century no distinction was made between potassium and sodium. This was because early chemists did not recognise that "vegetable alkali" (K2CO3, potassium carbonate, coming from deposits in the earth) and "mineral alkali" (Na2CO3, sodium carbonate, derived from wood ashes) are distinct from each other. Eventually a distinction was made.Well before potassium was recognized as an element, potassium carbonate was mixed with animal fat to make soap. The carbonate was made by extracting wood ash with water before concentration by boiling - hence the name "potash" for potassium salts.Potassium was isolated in 1807 by Sir Humphry Davy, who obtained it through the electrolysis of very dry molten caustic potash (KOH, potassium hydroxide). Potassium collected at the cathode. Potassium was the first metal isolated by electrolysis. Davy isolated sodium by a similar procedure later in 1807.Sometime prior to the autumn of 1803, the Englishman John Dalton was able to explain the results of some of his studies by assuming that matter is composed of atoms and that all samples of any given compound consist of the same combination of these atoms. Dalton also noted that in series of compounds, the ratios of the masses of the second element that combine with a given weight of the first element can be reduced to small whole numbers (the law of multiple proportions). This was further evidence for atoms. Dalton's theory of atoms was published by Thomas Thomson in the 3rd edition of his System of Chemistry in 1807 and in a paper about strontium oxalates published in the Philosophical Transactions. Dalton published these ideas himself in the following year in the New System of Chemical Philosophy. The symbol used by Dalton for potassium is shown below. [See History of Chemistry, Sir Edward Thorpe, volume 1, Watts & Co, London, 1914.]
What happens when you mix two chemicals?
yes it will be dangerous. for example and don't try this. my lessons chemistry teacher was telling us what will happen if you take potassium and throw it in water. the reaction is dangerous. also too, if you heat common table salt, until it is molten. then run a current through it, you'll get sodium metal forming and chlorine gas. the chlorine gas will kill you, so don't try it. but just to show you the dangerous effect of chemicals. this is not totally correct. Sodium is dangerous, as is chlorine, but combined they make common salt.
have to take a blood test for blood sugar hemoglobian a1c is there anything i can do to lower temporary prior to test?
HAVE TO TAKE A BLOOD TEST FOR BLOOD SUGAR HEMOGLOBIAN A1C IS THERE ANYTHING I CAN DI TI LOWER TEMPORARY PRIOR TO TEST
Potassium and iodine have formed a bond Prior to this the potassium gave up an electron It became a?
positive ion
What things would you need to measure evaluate and assess in an organisation prior to implementing any changes to processes and procedures?
what things would you need to measure ,evakuate and assess in an organisation prior to implementing any changes in the workplace
What drug effectively works only if taken prior to nerve agent exposure exposure?
2PAM Chloride
Do goats get diarrhea prior to giving birth?
Yes
Does sodium chloride dissolve in CS2?
Because carbon disulfide is a non-polar solvent sodium chloride is not soluble.
Should the pulse be taken prior to giving lanoxin?
yes do not give if below 60
What is the purpose of a splenoportography?
It is used to diagnose blockages in the splenic vein and portal-vein thrombosis and to assess the patency and location of the vascular system prior to liver transplantation.
What is pumpkins prior use?
its for being able to use jackolanterns when u giving a bich good s3x
What are the Common mistakes in clinical trials?
A common mistake in a clinical trial is failure to carefully examine the literature for similar, prior research. Also failure to critically assess the prior literature. Another mistake is failure to specify the inclusion and exclusion criteria for your subjects.
What is potassium pyrosulfate used for?
Potassium pyrosulfate (potassium disulfate) is a chemical compound, K2S2O7. It contains the pyrosulfate anion S2O72− which has a dichromate like structure.It is used in analytical chemistry; samples are fused with potassium pyrosulfate, (or a mixture of potassium pyrosulfate and potassium fluoride, KF) to ensure complete dissolution prior to a quantitative analysis.It is also used as a catalyst in conjunction with vanadium(V) oxide
Should you give the Valentine's Day gift prior to the day?
No, because then it's no fun for the person you are giving it to, on Valentine's Day because you gave it to them early.
Does pregnant molly eating slows down close to giving birth?
Like most other living creatures the act of procreation demands considerable work and strain. Of course the fish will stop eating just prior to and when she is giving birth.
