Question

Write a balanced net ionic equation for the following reaction: SrCl2(aq) + H2CO3(aq) → SrCO3(s) + HCl (aq)

Answer 1

We will balance the equation in the following order: metals, amethals, carbon, hydrogen and oxygen (the most common order).
The metal present in the equation is Sr, which is already balanced (there are 1 on each side of the equation).
The amethal present in the equation is Cl. There is 2 Cl in the left side and only one in the right side. So, we will multiply the quantity of the molecule that contains Cl by 2. Doing this, we'll obtain:


`SrCl_2_((aq))+H_2CO_3_((aq))\to SrCO_3_((s))+2HCl_((aq))`

Looking at the equation, we can see that it is now fully balanced. Hence, a balanced equation of the reaction is:


`SrCl_2_((aq))+H_2CO_3_((aq))\to SrCO_3_((s))+2HCl_((aq))`