What is the net ionic equation of #2H^+ + SO_4^(2-) + Ca^(2+) + 2I^- -> CaSO_4 + 2H^+ + 2I^-#?

1 Answer
Mar 25, 2017

Answer:

Simply cancel out the ions that are COMMON as reactants and products......

Explanation:

#cancel(2H^(+))+SO_4^(2-) + Ca^(2+) + cancel(2I^(-)) rarr CaSO_4(s)darr + cancel(2H^+) + cancel(2I^-)#

to give.......

#Ca^(2+)+SO_4^(2-) rarr CaSO_4(s)darr#

And the questions you've gots to be asking yourself are:

#"(i) Is mass balanced?"#

#"(ii) Is charge balanced?"#

Well are they? If they are not, then you have not made a reasonable representation of chemical reality. #CaSO_4# is reasonably insoluble in aqueous solution, and it precipitates from solution as a white solid.