Electrolytes nd freezing point. on mobile, pardon my typing.

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Electrolytes are substances that dissociate into ions in solution, allowing them to conduct electricity. Their ability to conduct electricity is determined by the presence of these charged particles. The freezing point of a solution can be lowered due to the presence of solutes, a phenomenon known as freezing point depression, which can be calculated using the Van't Hoff factor. This factor indicates the number of particles into which a solute dissociates in solution. The discussion highlights the importance of understanding these concepts in chemistry, despite the challenges of communicating effectively in a mobile format.
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in chem. class asked the question nd he ignored me, i hope smeone here can help me? wht are the properties of electrolytes nd how do yu kno they coduct electcity nd also how ud yu determinet lowest freezing eezing poin
 
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im sorry I am in chemistry class nd on my mobile, i did put effort not everyone has time to make things perfect
 
It seems like a simple enough question: what is the solubility of epsom salt in water at 20°C? A graph or table showing how it varies with temperature would be a bonus. But upon searching the internet I have been unable to determine this with confidence. Wikipedia gives the value of 113g/100ml. But other sources disagree and I can't find a definitive source for the information. I even asked chatgpt but it couldn't be sure either. I thought, naively, that this would be easy to look up without...
I was introduced to the Octet Rule recently and make me wonder, why does 8 valence electrons or a full p orbital always make an element inert? What is so special with a full p orbital? Like take Calcium for an example, its outer orbital is filled but its only the s orbital thats filled so its still reactive not so much as the Alkaline metals but still pretty reactive. Can someone explain it to me? Thanks!!

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