King E Posted September 26, 2020 Share Posted September 26, 2020 Is the solvation of salt (NaCl) in water a chemical reaction? Link to comment Share on other sites More sharing options...
studiot Posted September 26, 2020 Share Posted September 26, 2020 2 minutes ago, King E said: Is the solvation of salt (NaCl) in water a chemical reaction? Yes Link to comment Share on other sites More sharing options...
King E Posted September 26, 2020 Author Share Posted September 26, 2020 9 minutes ago, studiot said: Yes How? Link to comment Share on other sites More sharing options...
Bufofrog Posted September 26, 2020 Share Posted September 26, 2020 Sounds like homework. What makes the Na+ and Cl- come apart? Link to comment Share on other sites More sharing options...
King E Posted September 26, 2020 Author Share Posted September 26, 2020 1 hour ago, Bufofrog said: Sounds like homework. What makes the Na+ and Cl- come apart? It ain’t. The interaction of water molecules. Link to comment Share on other sites More sharing options...
Bufofrog Posted September 26, 2020 Share Posted September 26, 2020 What kind of interaction? You do know you can Google the answer in about 5 seconds? Link to comment Share on other sites More sharing options...
studiot Posted September 26, 2020 Share Posted September 26, 2020 4 hours ago, King E said: How? New (chemical) species are formed. Link to comment Share on other sites More sharing options...
King E Posted September 27, 2020 Author Share Posted September 27, 2020 (edited) 13 hours ago, Bufofrog said: What kind of interaction? You do know you can Google the answer in about 5 seconds? I did. Some people are saying that its a physical change and some are saying that it is a chemical change. 11 hours ago, studiot said: New (chemical) species are formed. In a solution the constituents exhibit individual chemical characteristics. You are saying that new chemical species are formed. So will the "NaCl in water " solution have different chemical properties from its constituents(NaCl and H2O)? i.e. is a "NaCl in water" solution a new compound with respect to NaCl or H2O ? And is the ion surrounded by water molecules (solvation shell) a new compound? Edited September 27, 2020 by King E Link to comment Share on other sites More sharing options...
John Cuthber Posted September 27, 2020 Share Posted September 27, 2020 Dissolving salt in water changes the NMR spectrum of the protons in the water molecules. https://aip.scitation.org/doi/abs/10.1063/1.1727486?journalCode=jcp That's evidence of a chemical reaction. Link to comment Share on other sites More sharing options...
Bufofrog Posted September 27, 2020 Share Posted September 27, 2020 3 hours ago, King E said: I did. Some people are saying that its a physical change and some are saying that it is a chemical change. It's a chemical change, the ionic bonds are broken by the water. Link to comment Share on other sites More sharing options...
studiot Posted September 27, 2020 Share Posted September 27, 2020 4 hours ago, King E said: I did. Some people are saying that its a physical change and some are saying that it is a chemical change. Rather than entering into another long pointless argument about the defintion, here is the first page of a modern textbook all about what are chemical reactions and why they occur. There is a whole chapter about solvation. Why do Chemical Reactions Occur ? Keeler and Wothers Oxford University Press Link to comment Share on other sites More sharing options...
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