Two clear solutions are combined

CHEMISTRY · Subjective · AP · Chemistry · Chemical Reactions · Chemical Reactions

Problem

Two clear solutions are combined. Prior to mixing, Solution A contains 2 Ca2+\mathrm{Ca^{2+}} ions and 4 NO3−\mathrm{NO_{3}^{-}} ions; Solution B contains 2 CO32−\mathrm{CO_{3}^{2-}} ions and 4 Na+\mathrm{Na^{+}} ions. After mixing, a white solid consisting of 2 formula units is present, and the aqueous phase contains 4 Na+\mathrm{Na^{+}} ions and 4 NO3−\mathrm{NO_{3}^{-}} ions. Write the balanced net ionic equation for the chemical change that occurred.

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