# How do you write a balanced equation for acid-base reactions?

## For example: $L i O H + H N {O}_{3}$ ${H}_{3} P {O}_{4} + K O H$ $C a {\left(H C {O}_{3}\right)}_{2} + H C l$ $B a {\left(O H\right)}_{2} + {H}_{2} S {O}_{4}$ $M g C {O}_{3} + H N {O}_{3}$

Jun 24, 2016

If we represent the acidium species as ${H}^{+}$, we have:

${H}^{+} + H {O}^{-} \rightarrow {H}_{2} O \left(l\right)$

#### Explanation:

And thus:

$L i O H \left(a q\right) + H N {O}_{3} \left(a q\right) \rightarrow {H}_{2} O \left(l\right) + L i N {O}_{3} \left(a q\right)$

${H}_{3} P {O}_{4} \left(a q\right) + K O H \left(a q\right) \rightarrow K {H}_{2} P {O}_{4} \left(a q\right) + {H}_{2} O \left(l\right)$

$C a {\left(H C {O}_{3}\right)}_{2} \left(a q\right) + 2 H C l \left(a q\right) \rightarrow C a C {l}_{2} \left(a q\right) + 2 {H}_{2} O \left(l\right) + 2 C {O}_{2} \left(g\right) \uparrow$

$B a {\left(O H\right)}_{2} \left(a q\right) + {H}_{2} S {O}_{4} \left(a q\right) \rightarrow B a S {O}_{4} \left(s\right) \downarrow + 2 {H}_{2} O \left(l\right)$

$M g C {O}_{3} \left(a q\right) + 2 H C l \left(a q\right) \rightarrow M g C {l}_{2} \left(a q\right) + {H}_{2} O \left(l\right) + C {O}_{2} \left(g\right) \uparrow$

Are these balanced? Don't trust my arithmetic.