Question

HNO3+CU(ON)2=HNO3+CaCO3=

Answer 1

Cu(OH)2 +2 HNO3 = Cu(NO3)2 +2 H2O
CaCO3 +2 HNO3 = Ca(NO3)2 + CO2 + H2O

Answer 2

Chemical Reaction Equation

The chemical equation provided is: HNO3 + Cu(ON)2 = HNO3 + CaCO3.

This equation seems to contain a typographical error, as "Cu(ON)2" is not a valid chemical compound. It's possible that the intended compound is "Cu(NO3)2" (copper(II) nitrate). Assuming this correction, the balanced chemical equation would be:

HNO3 + Cu(NO3)2 = HNO3 + CaCO3

Balanced Chemical Equation

The balanced chemical equation for the reaction is:

3HNO3 + Cu(NO3)2 = 2NO2 + 2H2O + Cu(NO3)2

This equation represents the reaction between nitric acid (HNO3) and copper(II) nitrate (Cu(NO3)2).

Conclusion

The reaction between HNO3 and Cu(NO3)2 does not produce CaCO3. Instead, it results in the formation of nitrogen dioxide (NO2), water (H2O), and copper(II) nitrate (Cu(NO3)2) as shown in the balanced chemical equation.