Select 10 reactions that produce a precipitate, color change or gas and state balanced chemical equation and a net ionic equation for each. Keep in mind a reaction may be indicated by the formation of a precipitate, color change, or the formation of gas. NaOH , Co(NO3)2 , Cu(NO3)2 , Fe(NO3)3 , Ba(NO3)2 , Ni(NO3)2 , NaPO4 , Nal , Na2SO4 , NaCl , NaHCO3 and Na2CO3