Question

Write the balanced net ionic equation

1.)0.10 M Na2CO3and excess 0.10 M HCl

2.)solid CaCO3and excess 2.0 M HNO3

Answer 1

1) Na2CO3_(aq) + 2HCl_(aq) -------> 2NaCl_(aq) + H2O_(l) + CO2_(g)

net ionic equation as folows

2H⁺_(aq) + CO3^-_(aq) ------------>   H2O_(l) + CO2_(g)

2) CaCO3_(s) + 2HNO3_(aq) ---------> Ca(NO3)2_(aq) +  H2O_(l) + CO2_(g)

net ionic equation

2H⁺_(aq) + CO3^-_(aq) ------------>   H2O_(l) + CO2_(g)