# What is the net ionic equation for the reaction between sodium carbonate, and zinc nitrate?

May 1, 2017

Well, zinc carbonate is fairly insoluble so..............

#### Explanation:

$C {O}_{3}^{2 -} + Z {n}^{2 +} \rightarrow Z n C {O}_{3} \left(s\right) \downarrow$

What becomes of the acetate and potassium ions?

How did I know that zinc carbonate was insoluble? How else by learning it by rote?

$\text{All the salts of the alkali metals (and}$ $N {H}_{4}^{+}$), $\text{and all the acetates are soluble.}$

$\text{All nitrates are soluble.}$

$\text{All halides are soluble except for those of}$ $P {b}^{2 +}$, $H {g}_{2}^{2 +}$, and $A {g}^{+}$.

$\text{All sulfates are soluble, except for those of}$ $P {b}^{2 +}$, $B {a}^{2 +} ,$ and $S {r}^{2 +}$.

$\text{All CARBONATES AND HYDROXIDES (except for those of}$
$\text{the alkali metals) ARE INSOLUBLE.}$

You will be given such a scheme, and the exceptions, and I suggest you learn them. You will also do these sorts of partner exchanges reactions in the lab.