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If you don't mind having 97%ethanol, methylated spirits(the 3% is why its called methylated). That would be the only normal way of getting some, do you mind if I ask why.
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The important bit is the state symbols because nothing else is happening. All others in solution(aq). Ag+ + NO3- + Na+ + Cl- --->AgCl(s) + NO3- + Na+ AgCl is a white precipitate which dissolves in dilute ammonia solution so is a good test for Cl- ions. The same happens with Br- - to give … Read more
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Basically it because  of the structure. H3PO4 is   O-H   / O=P-O-H       \   O-H so each H+ can be removed to leave -Ominus. H3PO3 is   O-H       / O=P-H      \   O-H Pminus is just too unstable compared with Ominus. Oxygen is more electronegative, but I reacon its more complex than … Read more