Fill in the Blanks Question 36Online version Acidic , basic and amphoteric by CHUA BI YUN Moe 1 2MgO 3H2O MgO NaOH H2 2HCl + ? MgCl2 + 2 2AlCl3 2H2O 3H2 6HCl NaOH Al2O3 + ? + 3 2NaOH 2NaAl 3H2O HCl 3NaOH 2H2O Al2O3 + + ? ( OH ) 4 4 2NaOH 2H2O Na2SO4 H2 3NaOH HCl SO3 + ? +