What would we see in the reaction between copper carbonate and concentrated hydrochloric acid?

1 Answer
anor277
Jan 6, 2016

CuCO_3(s) + 2HCl(aq) rarr CuCl_2(aq) + CO_2(g)uarr + H_2O(aq)

Explanation:

There should be no copper carbonate in hydrochloric acid; the carbonate ion is chemically decomposed. Of course, there will be residual metal and non-metal ions. [Cu(OH_2)_6]^(2+) has a beautiful blue colour; [CuCl_4]^(2-) is yellow green, and this will be the likely colour in conc. hydrochloric acid.

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