Question

Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of k2co3 and hbr are mixed.

Answer 1

1) write balanced chemical equation.

$K_{2}CO_{3}_{(aq)}+2\ HBr_{(aq)}\ ->\ 2\ KBr_{(aq)}+CO_{2}_{(g)}+H_{2}O_{(l)}$

2) separate into ions, if possible.

$2\ K^{1+}_{(aq)}+CO_{3}^{2-}_{(aq)}+2\ H^{1+}_{(aq)}+2\ Br^{1-}_{(aq)}\ ->\ 2\ K^{1+}_{(aq)}+2\ Br^{1-}_{(aq)}+CO_{2}_{(g)}+H_{2}O_{(l)}$

3) remove spectator ions.

$2\ H^{1+}_{(aq)}+CO_{3}^{2-}_{(aq)}\ ->\ CO_{2}_{(g)}+H_{2}O_{(l)}$