This is an acid/base reaction.
With sulphuric acid: ZnCO3(s) + H2SO4 --> ZnSO4 (aq) + CO2(g) + H2O(g)
With hydrocholic acid: ZnCO3(s) + 2HCl --> ZnCl2 (aq) + H2O + CO2
- Both will bubble and dissolve to form a soluble salt.
- When no more carbonate dissolves, the acid has been neutralised.
- The undissolved carbonate can be removed through filtration.
With sodium hydroxide: ZnCO3 (s)+ 2NaOH (aq)---> Zn(OH)2(s) +Na2CO3 (aq)
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