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# Acid-Base Reaction

APCHEM-LUJBOY

Which of the following is the net ionic equation for an acid-base reaction between solutions of $Ca(OH)_2$ and $H_2S$?

A

$Ca^{2+}+ S^{2-}→ CaS$

B

$H^++ OH^-→ H_2O$

C

$H^++ Ca^{2+}+ S^{2-}+ OH^-→ CaS + H_2O$

D

$Ca^{2+}+ H_2S + 2 OH^-→ CaS + 2 H_2O$