which of these compounds (Na2SO4, NaOH, Na2CO3, NaCl) will react to form precipitate with MgCl2
1 answer
Na2CO3 (sodium carbonate) will react with MgCl2 (magnesium chloride) to form a precipitate of magnesium carbonate (MgCO3). The other compounds (Na2SO4, NaOH, NaCl) will not form a precipitate with MgCl2.