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QUESTION
Got these wrong on a Net Ionic Equation test. What's correct for the following? Na2SO4+CaCl2=CaSO4+Na2Cl2, CuSO4+NaCO3=CuCO3+NaSO4, KOH+HCl=KCl+H2O, Na2CO3+HCl=2NaCl+H2CO3, KOH+MgSO4=MgOH+KSO4, NaSO4+CuSO4=CuSO4+NaSO4, HCl+HCO3=HCl+HCO3,
"4. The greater part of ##H_2CO_3## will disintegrate according to: ##H_2CO_3->H_2O+CO_2(g)##
